Experienced, Reliable, Responsive.

Established in 1986, Januar Jahja and Partners is one of the leading Intellectual Property Law firms in all of Indonesia.

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Awards & Recognitions

Januar Jahja and Partners is one of the best reviewed IP firms in Indonesia. Find out what our clients say about us and view our recent awards & rankings.

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Skilled & Experienced Professionals

Januar Jahja and Partners is led by industry-setting professionals with deep experience in Indonesian IP law.

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Core Practice Areas

Januar Jahja and Partners specializes in handling all aspects of Intellectual Property law in Indonesia, with eight established practice areas.

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Why Clients Trust Us.

Our dedicated team of experienced professionals works everyday to provide our clients with clear and practical advice in a responsive and professional manner.


<h2>700+</h2>

700+

Active clients

<h2>40+</h2>

40+

Active Client Jurisdictions

<h2>35+</h2>

35+

Dedicated Staff & Professionals

<h2>2x <span>winner</span></h2>

2x winner

IP Firm of the Year by Managing IP (2021, 2022)

What Our Clients Say

“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.”

WTR1000
WTR1000

2023

“Great service, proactive & professional.”

Legal 500
Legal 500

2022

“[E]xcellent professionals and lawyers who really understand both the client’s needs and the local IP situation in Indonesia.”

Chambers & Partners Asia Pacific
Chambers & Partners Asia Pacific

2022

“Insightful, practical advice in terms that US and foreign clients can understand, and they get results.”

WTR1000
WTR1000

2021

“What makes Januar Jahja & Partners tick are its people. They are accessible and responsive, and the advice they provide is always trustworthy.”

IAM Patent 1000
IAM Patent 1000

2019

MEMBER OF
RANKED IN

Devoted professionals.

Meet Our Team
Prudence Jahja

Prudence Jahja

  • Managing Partner
Juanitasari Winaga

Juanitasari Winaga

  • IP Consultant & Head of Operations
Andrew Diamond

Andrew Diamond

  • Foreign IP Consultant
Eva Dewi Kartika

Eva Dewi Kartika

  • Trademark Team Leader

Explore our practice areas.

  • Trademarks
    Trademarks
  • Patents
    Patents
  • Industrial Designs
    Industrial Designs
  • Copyright
    Copyright
  • Litigation
    Litigation
  • Investigations
    Investigations
  • Transactional
    Transactional
  • Enforcement
    Enforcement

A Strong Brand is a Protected Brand

In Indonesia, trademark protection starts with registration. As a first-to-file jurisdiction, it is vital to seek early protection of your brand; to timely renew your registrations; and to effectively enforce your trademark rights. JJP has extensive experience handling all aspects of Indonesian trademark protection, including prosecution and also contentious matters.

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Trademarks

Innovative Ideas Deserve Expert Protection

Patent protection in Indonesia requires experience, attention to detail, and timeliness. JJP excels in all three areas, with a professional and knowledgeable team experienced in handling a variety of patent matters across a wide range of industries and disciplines. With Patent Specialists and registered IP Consultants on staff, JJP offers both patent prosecution and contentious services to its clients.

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Patents

Maximize the Value of Your Designs

Industrial Design protection can be an important component to any IP portfolio. Not yet a member of the Hague Agreement, Indonesia has a number of idiosyncrasies in its registration and protection of industrial designs that requires experienced and knowledgeable professionals. JJP provides reliable and efficient prosecution and contentious services related to industrial designs in Indonesia.

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Industrial Designs

Secure the Rights to Your Creativity

Copyright protection may be automatic, but in Indonesia enforcement and some aspects of monetization require proof of copyright ownership. JJP has experience advising clients on copyright recordation, enforcement, and commercialization/monetization.

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Copyright

Expert Legal Representation for Your IP

Litigating IP disputes may sometimes be necessary and in those situations, it is vital to have experienced litigators who also have a deep understanding of IP. With such a team in place, JJP has over the years litigated some of the biggest IP cases in Indonesia.

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Litigation

Learn More, Decide Better

Properly conducted investigations can often result in important and actionable information for IP owners. From end-user investigations to market surveys and non-use investigations, JJP provides a full range of IP investigative services.

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Investigations

Unlock the Potential of Your IP

The right transaction has the potential to expand your business. From buying/selling to assignments and licensing, among others, JJP’s team of experienced and commercially-driven professionals are here to provide practical and savvy advice related to your IP transactions.

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Transactional

Confidently Enforce Your IP Rights

Enforcement of IP is not always a straight-forward endeavour. It requires skilled and knowledgeable counsel with extensive experience and deep understanding of the various issues in play. Our team routinely helps clients smoothly navigate the tricky but potentially rewarding Indonesian IP enforcement scene, whether online or in the market.

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Enforcement