• “Band 1” ranking for “Intellectual Property” in Indonesia
• The publication noted that “The firm is entrusted by multinational brands on trademark matters, including cancellation and opposition claims. The team advises on franchising matters, as well as patent prosecution. Januar Jahja & Partners regularly advises several prominent global brands in the retail, TMT, pharmaceutical, manufacturing and hospitality industries.”
• The publication also highlighted JJP’s recent litigation work, mentioning that the firm “advised foreign language testing service, Educational Testing Services, on filing a complaint to the Indonesian Name Registry (PANDI) regarding the use of some offending domain names using the .id domain that were intentionally misleading consumers.”
• Prudence Jahja is described as “a managing partner who heads Januar Jahja and Partners’ intellectual property practice. She frequently advises multinational clients on trade mark prosecution and litigation, alongside enforcement and infringement matters.”
• According to a client, “Prudence Jahja is extremely knowledgeable and communicative.”
• Foreign IP Consultant, Andrew Diamond, mentioned as “a foreign legal consultant who attracts praise from market sources for his considerable experience in Indonesia. He has a broad practice including expertise in patent filing and searches, as well as trade mark disputes”. A client stated that he is “very client-focused”.
• Ranked Lawyers: Prudence Jahja – Band 1; Andrew Diamond – Spotlight Table, Foreign Legal Consultants.

• Januar Jahja and Parters listed as “Tier 1” for Intellectual Property, Indonesia
• According to Legal 500, “Januar Jahja & Partners is home to a team of intellectual property specialists that receives mandates from international technology conglomerates, entertainment sector clients and domestic commercial entities.”
• The publication notes that JJP’s Managing Partner, Prudence Jahja, “spearheads the team and has leveraged her wealth of disputes experience in building a strong track record in the litigation space” while Andrew Diamond, Foreign IP Consultant, “focuses on patents and is regularly called upon to represent clients in the Indonesian Appeals Commission”.
• Legal500 also highlights Juanitasari Winaga, IP Consultant, mentioning that she “excels in IP portfolio management and has demonstrated that she can facilitate the mass transfer of trade mark rights to various teams within an international client’s operations.”
• The edition also noted that Eva Dewi Kartika, Associate, and John Frederick, Associate, “bring additional strength to the team”.
• The publication highlighted JJP’s work in securing the involuntary transfer of two Indonesian domain names to ETS, where the domain names were found to intentionally mislead consumers in relation to the TOEFL trademark.
• Recognized Individuals: Prudence Jahja“Hall of Fame”; Andrew Diamond “Leading Partner”; Juanitasari Winaga “Next Generation Partner”; Eva Dewi Kartika “Leading Associate”.

• According to the 2025 edition, “With their in-depth expertise encompassing all aspects of patent work – from litigation to prosecution – and a dedicated team of 14 practitioners from diverse backgrounds, Januar Jahja & Partners is a formidable presence on the Indonesian patent scene.”
• The publication highlighted that “Cosmopolitan managing partner Prudence Jahjahas successfully represented well-known multinationals in complex, high-stakes patent litigations”, stated that she is also “an active force on the prosecution front”
• IAM 1000 noted that “New York-qualified IP consultant Andrew Diamondheads the patent team, which he has nurtured and grown over the years”. An international client commented that “Andy is my go-to in Indonesia for tricky briefs. As an American, he understands the demands and expectations of US corporates. He is incredibly responsive and will always think outside the box – a strategic attorney who provides practical solutions in a challenging jurisdiction”,
• JJP’s Patent Attorney, Wulan Mogesmiranti, described as “provid[ing] detailed advice regarding every step of patent application lifecycle to businesses of all scales and sectors”, while complementing the team is Mitha Fuji Adiati, “an analytically minded chemical engineer with a knack for handling the substantive aspects of patent applications”.
• Recognized individuals:
• Prudence Jahja, “Gold”; Andrew Diamond “Gold”; Wulan Mogesmiranti “Silver”, Mitha Fuji Adiati, “Bronze”.

• “Band 1” ranking for “Intellectual Property” in Indonesia
• Lauded as “a well-respected boutique law firm in Jakarta with an excellent track record across contentious, transactional and advisory matters [that] is entrusted by multinational brands on trade mark matters, including cancellation and opposition claims.”
• A client raves: “They are knowledgeable about the fields in which we require help, and they are very professional and responsive.”.”
• JJP “regularly advises several prominent global brands in the retail, TMT, pharmaceutical, manufacturing and hospitality industries.”
• The 2024 edition highlighted JJP’s successful representation of Guangdong OPPO against Nokia in the first standard essential patent (SEP) infringement cases in the history of Indonesia, both in dismissing those cases at the Commercial Court and then defending them on appeal before the Indonesian Supreme Court.
• Partner Prudence Jahja is described by a client as “an excellent lawyer” and “sets the standard for her team”.
• Foreign IP Consultant Andrew Diamond is described by a client as “a leading IP figure in the region”; another states that “it is a pleasure working with Andrew”.
• Ranked Lawyers: Prudence Jahja – Band 2; Andrew Diamond – Spotlight Table, Foreign Legal Consultants.

• Januar Jahja and Partners ranked in “Tier 1” for Trademarks and “Tier 2” for Patents in Indonesia for the 2025 edition.
• Managing Partner Prudence Jahja recognised as “Top 250 Women in IP” for the 8^th consecutive year.
• Recognized Individuals: Prudence Jahja – “Trademark Stars 2025”, Andrew Diamond – “Notable Practitioner

• “Gold” ranking for 4^th consecutive year in “enforcement and litigation”
• “Gold” ranking for 9^th consecutive year in “prosecution and strategy”
• “Recommended” ranking for “licensing and transactions” category
• A source is quoted as follows: “Januar Jahja & Partners is professional, responsive and dedicated. They show an interest in our company, our brands and our IP strategy. Indonesia is not an easy jurisdiction, both in terms of legal framework, but also in terms of the geography. They are skilful in obtaining evidence and relevant information from anywhere within the jurisdiction. They respond to queries within 24 hours, their rates are reasonable and they are always commercial. They have achieved great results, and the experience of working with them is very positive,”
• According to the WTR 1000, JJP is “[c]onsistently getting the highest notes from clients regarding the scope and quality of service”, and “continues to impress with its trademark offering”.
• Managing Partner Prudence Jahja described as “a young trailblazer who has the ear of some of the world’s top brands, both in prosecution and litigation”, noting that she “has several remarkable wins under her belt”, most recently for her successful defence of Pirelli Tyre SpA’s trademark cancellation victory before the Supreme Court. A client mentioned that “Prudence is an excellent IP practitioner. She is highly responsive to queries and very commercial.”
• Foreign IP Consultant Andrew Diamond described as “an invaluable source of contentious advice for businesses seeking in-depth local know-how”. A client noted, “Andrew is responsive, professional and pragmatic in his approach.”
• IP Consultant and Head of Operations Juanitasari Winaga was mentioned as “excel[ing] at non-contentious-matters – from effective prosecution to devising practical strategies and managing portfolios on behalf of local and multinational brands”. A foreign associate commented, “Juanitasari is prompt and has been a strong ally for us in trademark opposition matters in Indonesia. She delivers good work and is reliable”.
• Trademark Team Leader Eva Dewi Kartika was recognized for assisting Prudence Jahja in the successful trademark cancellation action on behalf of Pirelli Tyre.
• Individual Recognitions:
  Prudence Jahja: “Gold” in “Enforcement and Litigation”, “Gold” in “Prosecution and Strategy”, and “Recommended” in “Licensing and Transactions”; Andrew Diamond: “Silver” in “Enforcement and Litigation”, “Silver” in “Prosecution and Strategy”, and “Recommended” in “Licensing and Transactions”; Juanitasari Winaga:  “Bronze” in “Prosecution and Strategy”; Eva Dewi Kartika: “Bronze” in “Prosecution and Strategy”.

• Januar Jahja and Parters listed as “Tier 1” for Intellectual Property, Indonesia
• The publication mentioned that “The team at Januar Jahja & Partners is well-equipped to handle trademark cancellations and rejections, in addition to advising on warning letters and the maintenance of trademark portfolios.”

• The 2025 edition also highlighted JJP’s recent litigation work, mentioning that the firm “successfully cancelled four trademark registrations based on bad faith for a leading Japanese automotive company before the Indonesian Supreme Court” and “successfully defeated a trademark cancellation action on behalf of a local agricultural company.”
• Managing Partner Prudence Jahja and Foreign IP Consultant Andrew Diamond ranked as “Leading Partners”
• Trademark Team Leader Eva Dewi Kartika ranked as “Leading Associate”
• Managing Partner Mrs. Prudence Jahja “acts for global, high-profile clients across the retail and tech sectors, and is recommended for her specialism in trademark litigation.” While Mr. Andrew Diamond is “well-known for his expertise in patent enforcement and litigation mandates, often acting for international clients.”
• Legal 500 also recognised Ms. Eva Dewi Kartika who “stands out for her broad knowledge, spanning IP infringement actions and trademark appeals.”

• Januar Jahja and Partners ranked as “Tier 1” for Trademarks and “Tier 2” for Patents  in Indonesia for the 2024 edition.
• Managing Partner, Prudence Jahja, recognised as “Top 250 Women in IP” for the 7^th consecutive year.
• Recognized Individuals: Prudence Jahja – “Trademark Stars 2024”, Andrew Diamond – “Notable Practitioner”, Eva Dewi Kartika – “Rising Star 2024”.

• JJP has been named winner of the category “Indonesia – Patent Litigation Firm of the Year” for the 2^nd consecutive year.
• JJP also won the “Indonesia – Trademark Prosecution Firm of the Year” category.

• Winner: “Best Boutique Law Firm” in Indonesia.
• Recognized for “advising clients on IP law encompassing areas including trademark and patent prosecution, IP litigation and investigation”, noting that “the law firm has been busy across all its practices in the past year, having successfully represented clients in litigation cases before commercial courts and the Supreme Court, obtaining new trademark portfolios”.
• A client is quoted as saying “We have been developing excellent working relationships with Januar Jahja & Partners for several years”, mentioning that the Firm “perfectly knows the Indonesian market and provides strategic advice with responsiveness and a friendly attitude.”
• JJP also recognized in the “Intellectual Property Enforcement” and “Intellectual Property Protection” categories.

• “Recommended” ranking for the 9th consecutive year.
• The 2024 edition stated, “With its dynamic, personable team of 14 patent professionals, the robust IP boutique JJP continues its winning streak”, mentioning that “…in the past year it has considerably boosted its number of filings and scored litigious victories before the Supreme Court.”
• Managing Partner, Prudence Jahja, recognised for having “in-depth understanding of the business needs of both local and international patrons, whom she often advises on patent prosecution, litigation and transactions.”
• IAM 1000 also highlighted Prudence’s work, stating that “she led the charge in the country’s first slew of SEP infringement litigations, successfully dismissing five cases filed by Nokia against OPPO. She went on to successfully defend these wins from appeals before the Supreme Court.”
• Foreign IP Consultant, Andrew Diamond, mentioned as “one of the pillars of the patent practice, having nurtured and expanded it for years into what it is today.”, and “the first choice for international clients seeking prompt and well-informed assistance in the country across a wide spectrum of matters – including litigation.”
• According to a market source, “Andy is excellent – very responsive and handling the work with care. He has demonstrated a thorough understanding of intellectual property matters, and has been instrumental in facilitating effective communication and coordination between our firm and JJP. In the course of our collaboration his professionalism and knowledge in IP matters have been evident. His contributions have significantly streamlined our patent-related processes”
• Patent Team Leader, Wulan Mogesmiranti, described as “well versed in all matters pertaining to patent prosecution, as well as enforcement”, while Patent Specialist, Mitha Fuji Adiati, “excels on the non-contentious front, especially when it comes to substantive examination.”
• Recommended Individuals: Prudence Jahja (Gold), Andrew Diamond (Gold), Wulan Mogesmiranti (Silver), Mitha Fuji Adiati (Bronze).

• “Gold” ranking for the 8^th consecutive year in “Prosecution and Strategy”
• “Gold” ranking for the 3^rd consecutive year in “Enforcement and Litigation”
• A client is quoted as follows: “Januar Jahja & Partners (JJP) respond to queries within 24 hours, their rates are reasonable and they are always commercial. They achieve great results and are vital advisers to international brands.”
• The 2024 edition described JJP as ”a premium IP practice in Indonesia, known for its litigious capabilities and prosecution prowess.”
• The WTR 1000 also recognized that “[R]ecently, the seasoned team of experts has won victories before the Commercial and Supreme Court, and is prolific at handling applications and oppositions on behalf of world-renowned multinationals.”
• According to the WTR 1000, “Fierce and accomplished Managing Partner Prudence Jahja routinely works with elite, Fortune 500 companies.”
• A client mentioned that “Prudence is an excellent IP practitioner. She is highly responsive to client queries and very commercially minded. She adopts a strongly goal-oriented approach and is a savvy litigator.”
• The publication also recognized Foreign IP Consultant, Andrew Diamond, “as always ready to assist foreign clientele with contentious matters.”
• A client also described that “Andy is reliable and achieves great results – he is a valuable ally to internationals in the region.”
• The publication also highlighted that Jahja and Diamond “worked together to win a domain dispute on behalf of Lemon Inc.”
• Trademark team leader Eva Dewi Kartika was lauded for “deftly handl[ing] both contentious and non-contentious matters”. The 2024 edition also mentioned that Eva “assisted Jahja in successful cancellation action on behalf of Pirelli Tyre.”
• Recognized individuals: Prudence Jahja, “Gold” for “Enforcement and Litigation” and “Prosecution and Strategy”, “Recommended Individual” for “Licensing and Transactions”; Andrew Diamond, “Silver” for “Enforcement and Litigation” and “Prosecution and Strategy”, “Recommended Individual” for “Licensing and Transactions”; Eva Dewi Kartika, “Bronze” for “Prosecution and Strategy”

• Tier 1 ranking for the 8 consecutive year.
• The 2024 edition noted that “Januar Jahja & Partners has an established track record in representing domestic and international clients in their complex, high-profile, and business critical IP disputes, with proven capabilities in handling novel litigation up to the Supreme Court.”
• The firm “provides comprehensive IP services, running the gamut of contentious and non-contentious work, and is able to service clients across patents, trademarks, licensing, investigations, and enforcement among other matters.”
• Managing Partner Mrs. Prudence Jahja“advises major brands in their trademark prosecution and litigation”, while Mr. Andrew Diamond is “another key point of contact as a foreign IP consultant with the firm, co-managing the international department, overseeing the patent team, and advising clients on litigation strategy and enforcement.”
• Legal 500 also recognised Ms. Eva Dewi Kartika, mentioning that she “is also noted for her trademark expertise.”
• A client stated, they are “[a]lways happy to take a quick call to discuss any urgent or tricky matters. Advice work is trusted”, while another client similarly notes that JJP is “Responsive to all enquiries and prepared to discuss relevant issues over the telephone.”
• Another client said, “They are responsive and get good results.”
• Recognized practitioners: Prudence Jahja “Leading Individual”, Andrew Diamond “Leading Individual”, Eva Dewi Kartika “Rising Star”.

• “Band 2” ranking for the 10th consecutive year
• JJP described as “a well-respected boutique law firm in Jakarta with an excellent track record across contentious, transactional and advisory matters.”
• The 2023 Edition also mentioned that “Januar Jahja & Partners regularly advises several prominent global brands in the retail, TMT, pharmaceutical, manufacturing and hospitality industries.”,
• The publication highlighted that “Januar Jahja & Partners successfully represented a cigarette filter producer in its appeal against a patent application rejection.”
• A client is quoted as stating that “Januar Jahja & Partners is proactive in handling a range of matters. They are prompt and efficient.”
• Another client is quoted mentioning that JJP’s advice “is clear and precise.”
• The publication mentioned that “The firm is entrusted by multinational brands on trade mark matters, including cancellation and opposition claims. The team advises on franchising matters, as well as patent prosecution”.
• Managing Partner, Prudence Jahja, was listed as a “Band 2” Ranked Lawyer who “especially advises multinational clients on trade mark cancellation and infringement actions in Indonesia, as well as patent infringement and online enforcement matters.”
• Foreign IP consultant, Andrew Diamond, was recognized in the “Spotlight Table” and described as “a foreign legal consultant who attracts praise from market sources for his considerable experience in Indonesia. He has a broad practice including expertise in patent filing and searches, as well as trade mark disputes.” A client also stated that “Andrew is very knowledgeable and committed to customer service.”
• Notable Practitioners: Prudence Jahja “Band 2”, Andrew Diamond “Spotlight Table- Intellectual Property: Foreign Legal Consultants”

• Januar Jahja and Partners have been named the winner of the “Patent Litigation Firm of the Year” for Indonesia.

• Tier 1 for Trademarks (2023)
• Tier 2 for Patents (2023)
• A source stated, “They are friendly and approachable.”
• Another source commented, “They are very responsive and provide comprehensive and high-quality advice in a timely and cost-efficient fashion.”
• Recognized Individuals: Prudence Jahja – “Trademark Stars 2023”, Andrew Diamond – “Notable Practitioner”, Eva Dewi Kartika – “Rising Star 2023”.

• “Recommended” ranking for the 8th consecutive year.
• A client is quoted as follows: “JJP is excellent – the best in Indonesia. They consistently meet – and often exceed – expectations.”
• A client highlighting that the firm “boasts an seasoned team of professionals and an impressive roster of clientele.”
• The 2023 edition also recognised that JJP is “involved in five OPPO/Nokia SEP infringement litigations, and has so far succeeded in getting four of the cases dismissed.”
• Managing Partner Prudence Jahja is described as “achiev[ing] stellar results not only in contentious matters, but also in prosecution and transactions.”; a client is quoted as stating that “Prudence is responsive, organised and delivers high-quality results.”
• Foreign IP consultantAndrew Diamond is described as a “New York-qualified attorney, who can seamlessly understand the needs and requirements of foreign patrons” mentioning that his clients “flock to him for astute advice regarding enforcement and litigation strategy in Indonesia, as well as non-contentious assistance.”. A client is quoted as follows: “Andy is an excellent communicator, highly reliable and very responsive. His advice is clear and concise, and he handles the work with care. He is great to work with as he tailors his advice to ensure foreign clients’ expectations are met.”
• The publication also recognised JJP’s Patent Team Leader, Wulan Mogesmiranti for “seamlessly handl[ing] the prosecution process, searches and office actions” while Patent Specialist Mitha Fuji Adiati was recognised for her expertise in substantive examination.
• Highly Recommended Individuals: Prudence Jahja, Andrew Diamond
• Recommended Individuals: Wulan Mogesmiranti, Mitha Fuji Adiati

• “Highly Recommended” ranking for Intellectual Property (Southeast Asia – Indonesia)
• Managing Partner, Mrs. Prudence Jahja listed as “Distinguished Practitioner”

• “Band 2” ranking
• JJP is described as a “well-respected boutique law firm in Jakarta with an excellent track record across contentious, transactional and advisory matters.”
• A source says about Januar Jahja & Partners: “We find them to be excellent professionals and lawyers who really understand both the client’s needs and the local IP situation in Indonesia.”
• Another commentator observes: “I have a high opinion of the firm. They are responsive, thorough and easy to work with.”
• JJP’s successful defense of local conglomerate PT. Bogamulia Nagadi against a trade mark cancellation action, including defending the client in an appeal before the Indonesian Supreme Court, was highlighted.
• Foreign IP Consultant Andrew Diamond “attracts praise from market sources for his considerable experience in Indonesia.” A commentator describes him as “reliable and responsive”, with the 2022 edition noting his “broad practice including expertise in patent filing and searches, as well as trade mark disputes.”
• Partner Prudence Jahja is described by one source as “knowledgeable and efficient”, with the 2022 edition noting that she “especially advises multinational clients on trade mark cancellation and infringement actions in Indonesia, as well as prosecution and acquisitions of trade marks.”
• Ranked Lawyers: Prudence Jahja – “Band 2”; Andrew Diamond – “Spotlight Table, Foreign Legal Consultants.

• JJP described as having an “impressive range of capabilities including the prosecution and litigation of trademarks, in addition to a strong track record in the filing of patent applications.”
• A client is quoted as stating that JJP’s team is “knowledgeable and experienced in their IP practice and provides prompt assistance”.
• Some JJP clients were also highlighted: “Counting DC Comics, Warner Bros and WeWork Companies among its standout roster of clients, key work highlights include the successful litigation of four patent infringement cases in the ongoing dispute between OPPO and Nokia.”
• Partner Prudence Jahja was listed as a “Leading Individual” who “focuses on trademark prosecution and litigation, as well as enforcement matters, including infringement work and website takedowns”.
• Foreign IP consultant Andrew Diamond was mentioned as “oversee[ing] the patent team” while Associate Eva Dewi Kartika “handles contentious trademark matters” and is a key contact in the group.
• Recommended: Prudence Jahja“Leading Individual”, Andrew Diamond, Eva Dewi Kartika.

• “Gold” ranking for the 7^th consecutive year in “Prosecution and Strategy”
• “Gold” ranking for the 2^nd consecutive year in “Enforcement and Litigation”
• One client is quoted as saying: “JJP is simply excellent–highly responsive and with a commercial outlook. It provides practical advice and value for money, and is always pleasant and easy to deal with.”
• According to the WTR 1000, “Januar Jahja & Partners is successful across the board: from victorious litigations before courts on all levels to effective prosecution work, the outfit continues to build on its already strong reputation and attract prestigious new clients.”
• Prudence Jahja sets the “gold standard for both prosecution and litigation”. A client described her as follows: “Ms Jahja is a consummate professional with a clear understanding of issues faced by her clients and a straightforward communication style. She excels in handling trademark matters and has an excellent track record due to her competence and effectiveness.”
• Andrew Diamond was noted for his excellence in “providing contentious services to the ever-growing list of international players.”
• Prudence Jahja and Andrew Diamond were both highlighted for “successfully defend[ing] DC COMICS’ win in the SUPERMAN trademark cancellation action on appeal before the Supreme Court.”
• Recommended: Prudence Jahja, “Gold” for “Enforcement and Litigation” and “Prosecution and Strategy”, “Recommended Individual” for “Licensing and Transactions”; Andrew Diamond, “Silver” for “Enforcement and Litigation” and “Prosecution and Strategy”, “Recommended Individual” for “Licensing and Transactions”.

• “Tier 1” ranking for the 6^th successive year
• JJP described as “a well-established presence in the intellectual property litigation space,” highlighting JJP’s “successful representation of DC Comics in the highly publicised trademark cancellation action case”, as well as its successful defense against two trademark cancellation actions for other clients
• A client is quoted as describing JJP as follows: “Great service, proactive & professional.”
• Partner Prudence Jahja“specialises in trademark prosecution and litigation” and is described by a client as ”clearly an expert in her field” with ”excellent communication skills.”
• The client continues: “ Prudence Jahja is clearly an expert in her field. Excellent communication skills as well as thoughtful advice and a service-minded approach make her an outstanding choice for our intellectual property needs in Indonesia. After working with another firm in Indonesia for decades, we are quite frankly relieved to have complete confidence in entrusting our work to Ms. Jahja.”
• Foreign IP Consultant Andrew Diamondis also described as “noted” and “has been driving growth and expanding the firm’s patent offering.”
• A client is quoted as follows: “We’ve worked most closely with Prudence Jahja and Andrew Diamond. We find them to be excellent professionals and are lawyers who really understand both the client’s needs and the local IP situation in Indonesia.”
• Recommended: Prudence Jahja “Leading Individual”, Andrew Diamond.

• “Gold” ranking for enforcement and litigation
• “Gold” ranking for prosecution and strategy
• “Januar Jahja & Partners’ excellent advice ensures that its trademark practice remains unaffected” by the Covid-19 pandemic, noting that JJP’s “full IP service offering continues to win praises from peers and clients”
• Partner Prudence Jahja described as “one of the most accomplished IP lawyers in Indonesia”
• According to one of her longstanding clients: Prudence “impresses me with her clarity of communication and thorough clear understanding of the matter”
• Recommended: Prudence Jahja, “Gold” ranking for both “enforcement and litigation” and “prosecution and strategy”; Andrew Diamond, “Silver” ranking for both “enforcement and litigation” and “prosecution and strategy”

• “Recommended” ranking (highest available) for the 7^th successive year
• JJP lauded for “its impressive roster of long-term marquee names [due] to its ability to adapt to differing needs.”
• A Client stated that “The team at JJP is proactive and easy to communicate with. Their responsiveness is unparalleled.”
• Another client is quoted as describing JJP as “extremely dependable, while maintaining flexibility in all possible aspects.”
• One source commented that Foreign IP Consultant Andrew Diamond “as an American, [he] has a unique understanding of what US patent applicants expect and demand”
• Patent Team Leader Wulan Mogesmiranti described as “a virtuoso prosecutor with extensive life sciences experience”
• Managing Partner Prudence Jahja is noted for shining “on the contentious front”, highlighting her representation of OPPO against Nokia “in a series of the biggest patent infringement litigations in the history of Indonesia.”
• Recommended; Prudence Jahja, Andrew Diamond, Wulan Mogesmiranti

• Winner: Firm of the Year – Indonesia 2022 (second consecutive year)
• “Tier 1” for Trademark Prosecution
• “Tier 2” for Trademark Contentious
• “Tier 2” for Patent Prosecution
• Partner Prudence Jahja– Trademark Star, Top 250 Women in IP
• Foreign IP Consultant Andrew Diamond – Trademark Star

• “Band 2” ranking
• One source comments: “I have been happy with their services,” who adds that “they are our go-to fim in Indonesia for patent matters.”
• JJP described as a “Well-respected boutique firm with an excellent track record across contentious, transactional and advisory matters. Entrusted by multinational brands on trade mark matters, including prosecution, cancellation claims, online infringement and litigation. Also advises on the acquisition of trade marks, as well as patent prosecution.
• “Regularly advises several prominent global brands in the retail, TMT, pharmaceutical, manufacturing and hospitality industries.
• Partner Prudence Jahja “especially advises multinational clients on trade mark cancellation and infringement actions, as well as prosecution and acquisitions of trade marks. ‘She maintains critical client communication and efficient action,’ according to a source.”
• Foreign IP Consultant Andrew Diamond “has a broad practice including expertise in patent filing and searches, as well as trade mark disputes. One source says he is ‘an excellent point of contact who works with his team to promptly respond to questions.’”
• Ranked Lawyers: Prudence Jahja – “Band 2”; Andrew Diamond – “Band 1, Foreign Legal Consultants.”

• “Tier 1” ranking for the 5^th consecutive year
• JJP described as “a leading intellectual property boutique with a client roster containing iconic brand owners”
• Partner Prudence Jahja is identified as “an important name in the market, most notably in the areas of trademark prosecution and litigation” while foreign IP consultant Andrew Diamond is noted as “particularly strong in patent drafting and registration”
• JJP’s successful defense of two clients in separate trademark cancellation actions was highlighted, as was the firm’s successful handling of a government petition to block copyright-infringing website content
• Partner Prudence Jahja is described by a client as “clearly an expert in her field. Excellent communication skills as well as thoughtful advice and a service-minded approach make her an outstanding choice for our intellectual property needs in Indonesia. After working with another firm in Indonesia for decades, we are quite frankly relieved to have complete confidence in entrusting our work to Ms. Jahja.”
• According to one client “Having a US attorney working for them gives the advantage of understanding what US corporates and applicants need”, while another noted that Andrew Diamond “knows how foreign applicants think, and understands what they need from him and their patents in ID. He gives clear concise commercially relevant advice.”
• Recommended: Prudence Jahja “Leading Individual”; Andrew Diamond.

• “Highly Recommended” ranking for enforcement and litigation
• “Gold” ranking for prosecution and strategy
• “Widely considered one of the strongest IP sides in Indonesia”
• “Leading this gold-standard firm is the ‘strong, powerful and successful combination of expat American husband, Andrew Diamond, who has a sophisticated understanding of the needs and constraints of foreign clients, and native Indonesian wife, Prudence Jahja, who knows the legal intricacies and practice folklore of the Indonesian IP system’”.
• The firm provides “insightful, practical advice in terms that US and foreign clients can understand, and they get results”.
• One client states: “After dealing with another firm in Indonesia for decades, Jahja’s clarity of communication and clear understanding of the issues were, quite frankly, a relief.”
• Another client notes: “Their entire team is incredibly responsive. We do not need to worry about a lot of back and forth as communication is always smooth.”
• Recommended: Prudence Jahja, Andrew Diamond recommended for both “enforcement and litigation” and “prosecution and strategy”

• “Recommended’ ranking (highest possible)
• One of only nine recognized patent firms in Indonesia
• JJP provides “very prompt and efficient service” according to one client
• “[W]ell-positioned to prosecute patents for patrons across industries, having just added two patent specialists to its substantial team of nine.”
• “[F]oreign associates and multinationals can continue to depend on New York-qualified attorney Andrew Diamond to handle patent matters in a variety of technical fields “with great competency”.
• Recommended: Andrew Diamond.

• Winner: Firm of the Year – Indonesia 2020
• “Tier 1” for Trademark Prosecution
• “Tier 2” for Trademark Contentious
• “Tier 2” for Patent Prosecution
• Partner Prudence Jahja – Trademark Star, Top 250 Women in IP
• Foreign IP Consultant Andrew Diamond– Trademark Star

• “Band 2” ranking
• One source comments: “They are very conscientious, responsive and diligent. We are very happy with their service.”
• A client states that “the firm is really experienced in Indonesian IP law and efficient in dealing with our issues.”
• JJP described as a “Well-respected boutique firm with an excellent track record across contentious, transactional and advisory matters. Entrusted by multinational brands on trade mark matters, including prosecution, cancellation claims and litigation, while also handling domain name disputes and anti-counterfeiting.”
• “Has also recently increased its handling of patent prosecution.”
• “Regularly advises several prominent global brands in the retail space. Also active in the manufacturing and fashion industries.”
• Managing Partner, Prudence Jahja “earns praise from clients as “a very experienced, professional and efficient lawyer.”
• Foreign IP Consultant, Andrew Diamond lauded as having “a very good understanding of Indonesian IP law and always quickly responds to our enquiries”, while another source lauded “his provision of informative and timely answers.”
• Ranked Lawyers: Prudence Jahja – “Band 3”; Andrew Diamond – “Band 1, Foreign Legal Consultants.”

• “Tier 1” ranking
• Recognized as “the IP practice of choice for a number of household names”
• Partner Prudence Jahja “leads the team and has extensive experience in trade mark prosecution and litigation”
• Foreign IP Consultant Andrew Diamond described as “an expert in litigation and enforcement”
• Shortlisted: Southeast Asia IP Firm of the Year – Indonesia 2020
• Recommended: Prudence Jahja “Leading Individual”; Andrew Diamond.

• “Highly Recommended” ranking for enforcement and litigation
• “Gold” ranking for prosecution and strategy
• One client stated: “Januar Jahja & Partners provides one of the highest-quality IP services in Indonesia.”
• Another client quoted as follows: “Prudence works meticulously and diligently follows up with clients, whom she advices from both legal and business perspectives. Her superb English language skills are very helpful for international colleagues and brand owners.”
• Foreign IP Consultant Andrew Diamond described as a “superb strategist for enforcing and litigating trademarks and other forms of intellectual property.”
• Recommended: Prudence Jahja, Andrew Diamond recommended for both “enforcement and litigation” and “prosecution and strategy”

• “Recommended’ ranking (highest possible)
• One of only nine recognized patent firms in Indonesia
• One client quoted as follows: “JJP staff and attorneys are exceptionally responsive and never fail to give clear-cut advice to even the most complex of enquiries.”
• JJP’s “‘wealth of experience and reliability’ is a hot commodity among foreign associates and direct clients.”
• Foreign IP Consultant Andrew Diamond described as “one of the most recognisable practitioners in Indonesia.”
• Recommended: Andrew Diamond.

• Winner: Prosecution Firm of the Year – Indonesia 2020
• “Tier 2” for Patent Prosecution
• “Tier 2” for Trademark Contentious and Trademark Prosecution
• JJP “witnessing an increase in its IP practice and workload”, noting that the firm has recently “bolstered its team with three new IP attorneys and a patent specialist.”
• JJP “experiencing a renaissance since managing partner Prudence Jahja took over the practice”
• “The firm has reinvigorated its strategy and has been raising its profile among international clients for both prosecution and contentious trade mark matters. The firm won no less than seven key household names as clients this past year.”
• Key Supreme Court victory for Wahl Clipper Corporation mentioned, along with ongoing representation of DC Comics in trademark cancellation action
• Partner Prudence Jahja – Trademark Star, Top 250 Women in IP
• Foreign IP Consultant Andrew Diamond– Trademark Star

• “Band 2” ranking
• Describes JJP as a “well-respected boutique firm with an excellent track record across contentious, transactional and advisory matters.”
• A client is quoted as saying: “The firm stays on top of current developments in the law, whilst providing creative solutions to trade mark and copyright infringement problems.”
• Entrusted by multinational brands on trade mark matters, including prosecution, cancellation claims and litigation, while also handling domain name disputes and anti-counterfeiting
• Foreign IP Consultant Andrew Diamond ”is considered an IP expert by sources, with one noting: ‘He is excellent and provides clear, concise communications and advice as well as information about new areas of protection and enforcement as they arise.’”
• Ranked Laywers: Prudence Jahja – “Band 3”; Andrew Diamond – “Band 1, Foreign Legal Consultants.”

• “Highly recommended”
• Ranked Lawyers: Prudence Jahja.

• “Tier 1” ranking
• “Notably strong reputation in litigation”
• JJP is recognized as representing “a number of household brands in IP disputes”
• Managing Partner Prudence Jahja “heads the team and has extensive experience in handling trade mark prosecution and litigation”, while being named a Leading Individual
• IP Consultant Juanitasari Winaga is recognized as a “trade mark prosecution specialist”
• Foreign IP Consultant Andrew Diamond and Associate Nena Esse Nurasifa are also recommended, with Ms. Nursasifa being named “A Next Generation Lawyer”
• Recommended: Prudence Jahja, Andrew Diamond, Juanitasari Winaga, Nena Esse Nurasifa.

• “Recommended” ranking for enforcement and litigation
• “Gold” ranking for prosecution and strategy
• JJP is recommended as a firm with “full steam ahead as multiple famous clients with extensive portfolios have recently transferred over to the firm from competitors.”
• JJP is named as a “magnet for major multinationals”.
• JJP’s reputation is built on “the foundation of excellence in litigation and an assertive approach that brings about instant changes in the behavior among infringers and counterfeiters”.
• Discerning international clients vouch for Prudence Jahja and the “exemplary advice she provides”. One client espouses: “She has, over the years, proven to be the most reliable, responsive and thorough guardian of our brand”.
• Andrew Diamond is noted as a “highly creative thinker whose strategies often make the difference in touch-and-go litigations and enforcement scenarios”.
• Recommended: Prudence Jahja, Andrew Diamond.

• “Recommended’ ranking
• Listed as one of only nine recognized patent firms in Indonesia
• According to one interviewee: “What makes Januar Jahja & Partners tick are its people. They are accessible and responsive, and the advice they provide is always trustworthy.”
• “The outfit’s top-notch services are fast becoming a hot commodity amongst top-ranked firms in Australia, China and India, which increasingly rely on its personable and efficient prosecution service to fulfil their Indonesian filing needs.”

• “Recommended” ranking for Copyright
• “Tier 3” ranking for Patent Prosecution
• “Tier 2” ranking for Trademark Contentious and Trademark Prosecution
• Partner Prudence Jahja – Trademark Star, Top 250 Women in IP
• Foreign IP Consultant Andrew Diamond – Trademark Star

• “Highly Recommended” ranking
• Ranked Lawyers: Prudence Jahja – Rising Star Lawyer.

• “Tier 1” ranking
• JJP is recognised as “experts in their field”.
• JJP is “committed to client service” and “dedicated to excellence”.

• “Recommended” ranking for enforcement and litigation
• “Gold” ranking for prosecution and strategy
• JJP is noted as a firm “with a great deal of momentum” and that “droves of new clients – predominantly well-known international brand owners – are clamouring for the team’s simple but hard-to-cook recipe of responsiveness, pragmatism and commerciality.”
• One new client confides: “Transferring our trademark work to Prudence Jahja was the best decision we could have possibly made – the difference in responsiveness and quality has truly been amazing. Prudence and her team have gotten several positive outcomes for us on matters on which our previous counsel did not seem able to offer any assistance. Prudence has clearly demonstrated that she is an expert in her field, and that she is dedicated to her clients. She gets our highest recommendation.”
• Foreign IP Consultant Andrew Diamond “garners much praise”. A client “speaks highly of the results obtained in trademark litigation” and describes him as “quick to react, articulate and solutions oriented”
• Recommended: Prudence Jahja, Andrew Diamond.

• “Band 2” ranking
• The team’s attentiveness draws strong praise from interviewees, one of whom reports: “They are extremely responsive and very detailed and practical in their advice.”
• The source adds that “they get things done on very tight deadlines.”
• Another commentator report that it is “excellent, especially on complicated cases.”
• Partner Prudence Jahja is described by impressed sources as “quick and always on time.”
• Foreign IP Consultant Andrew Diamond is well regarded for his wide-ranging experience of IP matters in Indonesia, with his focus including IP enforcement and litigation advice.
• Ranked Lawyers: Prudence Jahja – “Up and Coming”; Andrew Diamond – “Band 1, Foreign Legal Consultants.”

• “Recommended” ranking
• “An outstanding prosecution practice is the jewel in Januar Jahja & Partners’ crown.”
• JJP “sews up watertight protection for innovations in a diverse array of technical fields.”
• JJP is “always looking to add value” and “the team acquits itself with distinction when licensing patents and putting infringement disputes to bed.”

• “Recommended” ranking for Copyright
• “Tier 3” ranking for Patent Prosecution
• “Tier 2” ranking for Trademark Contentious and Trademark Prosecution
• JJP “has gained considerable momentum in recent years.”
• A client notes: “JJP is extremely responsive.”
• Partner Prudence Jahja – Trademark Star, Top 250 Women in IP
• Foreign IP Consultant Andrew Diamond – Trademark Star

• “Highly Recommended” ranking
• Ranked Lawyers: Prudence Jahja – Rising Star Lawyer.

• “Tier 1” ranking.
• JJP’s “‘excellent service’ has won the firm several new high-profile, international clients.”
• Ranked attorneys: Prudence Jahja, Andrew Diamond, and Januar Jahja.

• “Gold” ranking for ‘Prosecution and Strategy.’
• JJP “has earned an enviable reputation over its 20 years on the Indonesian market – one that has only been bolstered by a recent Supreme Court victory.”
• Highlighted JJP’s successful representation of QQ-owner Tencent Holdings, “a high-stakes case that showcased its contentious nous to the fullest.”
• Partner Prudence Jahja is described as “a key contact for large international clients; she understands their business problems and how to solve them within the Indonesian IP system.”
• Foreign IP Consultant Andrew Diamond is noted for his “extensive enforcement experience and the perseverance, creativity and theoretical know-how to pull off stunning wins for clients.”
• Founding Partner Januar Jahja is described as “a lodestar on the trademark landscape.”
• Highly Recommended: Januar Jahja.
• Recommended: Prudence Jahja, Andrew Diamond.

• “Band 2” ranking.
• JJP “attracts praise for its solution-driven approach,” quoting one client as saying, “They were practical and creative. They always had recommendations for bringing a dispute to a conclusion.”
• “Another commentator highlights the firm’s efficiency: ‘Their work is high-quality and their responsiveness is refreshing.’”
• Noted that JJP is “well known for trade mark infringement and trade mark application work and is increasingly active on anti-counterfeiting investigations and enforcement actions,” while “[p]eers note that it is also building up its reputation among foreign clients.”
• Partner Prudence Jahja “earns praise for her handling of contentious matters for both local and international clients. One commentator describes her work as ‘stellar in every way’. Another highlights her deep knowledge of the practice area, saying: ‘She really knows the Indonesian trade mark laws.’”
• Foreign IP Consultant Andrew Diamond is described as “very responsive and able to offer creative solutions.”
• Ranked Lawyers: Prudence Jahja– “Up and Coming”; Andrew Diamond– “Band 1, Foreign Legal Consultants.”

• “Highly Recommended.”
• 2016 described as “about reaping the gains for” JJP.
• Highlighted JJP’s successful appeal to the Trademark Appeal Commission for international client to overcome a prior rejection.
• Ranked Lawyers: Founding Partner Januar Jahja– “Market leading lawyer”.

• “Tier 2” ranking.
• “Particularly noted for its litigation capabilities.”
• Highlighted JJP’s successful representation of Tencent Holdings Limited before the Indonesian Supreme Court.
• Also highlighted JPP’s representation of DAMN! I Love Indonesia in several online enforcement actions.
• Ranked Attorneys: Januar Jahja, Prudence Jahja, and Rianti Namora.

• “Tier 2” ranking for ‘Trademark Contentious’ and ‘Trademark Prosecution.’
• Described as an “IP boutique which provides legal services to well-known businesses” with “experienced local and foreign practitioners.”
• JJP “is well-known for initiating cancellation proceedings on behalf of its clients.”
• JJP also “runs a strong trademark prosecution practice.”
• Partner Prudence Jahja is noted for her work on “complex matters”, as well as “trademark prosecution and litigation and enforcement, including website takedowns.”
• Foreign IP Consultant Andrew Diamond is “described by some of his peers as ‘a bright lawyer’, advises clients on IP-related litigation.”
• Trademark Stars: Januar Jahja, Andrew Diamond.

• “Ranked” as a leading patent firm in first ever IAM Patent 1000 rankings for Indonesia.
• “Dynamic, cutting-edge solutions set Januar Jahja & Partners apart from the pack.”
• JJP “also runs a tight ship when it comes to patent registration and strategic counselling.”
• “With internationally experienced management, the 25-member team is well positioned to serve patrons from all corners of the globe.”

• “Silver” ranking for both ‘Enforcement and litigation’ and ‘Prosecution and strategy’.
• JJP is described as “geared up to become the next big thing in the Indonesian IP scene.”
• “Thanks to their flawless registration services and ironclad defence of clients’ rights, its up-and-coming generation of lawyers continue to show promise.”
• Founding partner Januar Jahja described as “a leading litigator with profound insight into the trademark business.”
• Senior associate Prudence Jahja described as “a rising star in Indonesia who brings crucial overseas experience to the team.”
• Recommended: Januar Jahja, Prudence Jahja.

• “Highly Recommended” for Intellectual Property and “Recommended” for Dispute Resolution.
• Describes JJP as “a fast growing IP firm best known for its trade mark work.”
• One client quoted as saying: “We highly recommend them because of their excellent advice, good communication skills, and the trust in the firm.”
• Senior associate Prudence Jahja described as a “rising star”, with one client praising her as follows: “She provides an excellent and thorough service in trade mark disputes and counseling.”
• Ranked Attorneys: Januar Jahja.

• “Band 2” ranking.
• Described as a “boutique firm which fields highly experienced practitioners with a strong focus on handling trade mark matters for international clients.”
• Noted for being “[s]killed in contentious matters, particularly trade mark prosecution.”
• Client quoted as saying, “”We have always found JJP to be excellent, especially in terms of their responsiveness and providing proactive advice. Their ability to turn work around quickly, and explain local legal issues has been excellent for us.”
• Another client described JJP as “[v]ery responsive and efficient in their work.”
• Highlighted JJP’s successful representation of Tencent Holdings Limited and Truper SA de CV in recent trademark litigation cases.
• Senior Associate Prudence Jahja named “Associate to watch”, stating that she “is praised by interviewees, who note that ‘she is absolutely top-notch’ as she ‘provided round-the-clock service.’”
• Andrew Diamond listed in Band 1 for “Intellectual Property: Foreign Legal Consultants – Indonesia” with interviewees describing him as “‘very helpful in establishing good working relationships’ and‘facilitating smooth communication,’ while another enthused that they ‘could not speak highly enough of him.’”
• Ranked Lawyers: Prudence Jahja and Andrew Diamond.

• Ranked in both “Enforcement and Litigation” and “Prosecution and Strategy” categories.
• “Communication skills, responsiveness and cost effectiveness distinguish Januar Jahja & Partners, according to its many admirers.”
• The Firm’s “next generation is rapidly gaining a global reputation as an ultra-modern and hyper-efficient team that excels in contentious matters as well.”
• Described as “long enjoy[ing] an enviable standing among local prosecution entities.”
• Managing Partner Januar Jahja described as the “visionary behind the firm’s long-running success”.
• “Clients are effusive in their praise of European-educated, US-experienced Prudence Jahja,” with one client in particular stating: “Prudence could not be any more superb a lawyer; she provided literally round-the-clock service for months on end in a complex trademark lawsuit, during which she made our team feel entirely comfortable. We trusted her completely and the end result was exactly what we needed. We are excited to have future matters in Indonesia so that we can work with her again.”
• Leading Individuals: Januar Jahja & Prudence Jahja.

• Highlighted JJP’s “successful[] represent[ation]” of Mexican hardware giant Truper S.A. de C.V. in a trademark cancellation action versus a trademark squatter.
• “Januar Jahja heads the team”

• “Highly Recommended” for our Intellectual Property Practice
• JJP “is a thriving mid-sized intellectual property firm based in Jakarta that has established a strong reputation for its trade mark work”
• One client quoted as saying: “The quality of their work and response is second to none.”
• The firm’s “main focus is trade marks with a substantial part of [their] work devoted to litigation,” nothing the “string of notable successes” enjoyed by the firm recently.
• Foreign Legal Consultant Andrew Diamond noted for “manag[ing] the firm’s international clients.
• Leading Lawyers: Januar Jahja.

“IP Enforcement Law Firm of the Year in Indonesia.”

• “Band 2” ranking.
• “An in-demand boutique with an especially strong reputation for its trademark work, attracting clients which are household names.”
• Client quoted as saying “I would always go back to Januar Jahja & Partners.”
• “[H]as thriving trade mark and patent clearance and prosecution offerings.”
• “Particularly active with respect to trademark cancellation and opposition actions.”
• Noted JJP’s trademark cancellation victory on behalf of Tencent Holdings “in a well-publicised” action.
• Foreign legal consultant Andrew Diamond described as a ‘notable practitioner’ and “key contact.”

• “[P]atrons know they are in safe hands thanks to the group’s sterling track record of successes.”
• “[P]articularly feted for its litigation and enforcement work.”
• Managing Partner Januar Jahja described as a “profoundly intelligent lawyer” and “the driving engine” of the firm.
• “A knack for navigating clients through the idiosyncrasies of the fledging Indonesian IP system is its hallmark.”
• JJP “has enjoyed prodigious growth as IP awareness at a local level continues to develop.”
• Leading Individual: Januar Jahja.

• Named a “Recommended” firm and “highly recommended” for its Intellectual Property practice.
• “[H]as established a standout reputation for its contentious trade marks work.”
• Managing Partner Januar Jahja “is highly praised for his technical skills and acumen.”
• “Described by a client as ‘a local law firm with good networks,’ the firm’s clients including leading international and domestic companies.”
• “[H]as solid trade marks and patent prosecution practices.”

• JJP’s “team has ‘good IP experts that are responsive and pragmatic’ and have ‘a dynamic, proactive approach to law.’”
• “[A]cts for international brand owners and is also increasingly conducting outbound work for domestic clients.”
• Managing Partner Januar Jahja “recommended.”
• Foreign Legal Consultant Andrew Diamond “has ‘a professional background in dealing with foreign clients.’”

• “[H]as built up a wealth of experience – and a solid track record – in contentious matters.”
• “[K]nows how to navigate conflicts quickly and smoothly.”
• “Indonesian companies…turn to this firm as first port of call.”
• “[H]as long secured great results for notable foreign brands.”
• “Managing partner Januar Jahja has over three decades of experience and advanced know-how on all aspects of trademark protection and enforcement.”
• Leading Individual: Januar Jahja.

“IP Enforcement Law Firm of the Year in Indonesia.”

• “[H]as a growing reputation in the market, having handled some impressive work in the last year.”
• “[I]s especially noted for initiating cancellation proceedings against infringing trade marks and copyrights.”

• “IP firm Januar Jahja & Partners handles contentious trade mark matters for a number of well-known international brand-owning clients.”
• “Founding partner Januar Jahja has deep experience in IP litigation and trade mark opposition work.”

“Januar Jahja & Partners has a strong presence in the local market as an IP boutique.”