Wongrat Ratanaprayul

Director, Indonesia
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T: +6221 2971 8099
F: +6221 2971 8050




Thai, English


JD, University of Connecticut School of Law

Master of Biotechnology, University of Pennsylvania

BSc, State University of New York at Stony Brook

Wongrat Ratanaprayul is the director of Tilleke & Gibbins’ Indonesia operations, based in Jakarta. She advises clients on all aspects of IP prosecution in Indonesia, as well as in multiple jurisdictions throughout Southeast Asia, to ensure efficient and effective IP portfolio management. Wongrat’s practice benefits from her exceptional breadth of expertise and her international reach.

Wongrat is a particularly adept patent practitioner, and is much sought-after in highly technical fields including biotechnology, pharmaceuticals, automotive, electronics, and computer-related technology. She regularly interviews inventors to derive information pertinent to drafting patent applications in life sciences and consumer products; provides opinions on freedom-to-operate analyses; routinely conducts patent and design searches; and provides clients with clear and practical patent portfolio management strategies to protect their interests.

Wongrat also oversees the firm’s regulatory affairs practice in Indonesia, serving clients in pharmaceuticals, food, cosmetics, and related industries with respect to product registration and compliance. In addition, she supervises the preparation of trademark applications, registrations, and renewals, and coordinates enforcement strategies to protect brand owners’ interests.

Prior to attending law school, Wongrat worked at Keck Graduate Institute, where she focused her research on proteomics. During her graduate study in biotechnology, she specialized in bioinformatics and annotated mouse genes present on pancreas cDNA.

Before moving to head up the firm’s Indonesia office, Wongrat worked as an attorney-at-law in the firm’s head office in Bangkok for several years. Wongrat is admitted to the bar in Connecticut and Massachusetts and is qualified as a Thai patent agent.

  • Advised a subsidiary of Thailand’s largest oil and gas company on its multi-jurisdictional patent portfolio in the field of catalysts, across several countries in Asia, Europe, and the United States. The legal services provided included pre-filing strategy, claims reviews, and patent portfolio audits.

  • Retained to advise one of the world’s largest chemical manufacturers on the management of their entire patent portfolio in Indonesia, from registration to enforcement.

  • Advising on Indonesia international cooperation schemes, such as the ASEAN Post Examination Cooperation (ASPEC) system, introduced in 2017, and the Japan Patent Office/Directorate of Intellectual Property Rights Patent Prosecution Highway.

  • Advising an international confectionary manufacturer on their regulatory and labeling requirements.

  • Advising a major global automotive industry client on drafting their unusually technical suite of patent applications in Indonesia.

  • Advised on a portfolio of over 1,500 industrial designs, copyrights, and trademarks for a global jewelry designer and manufacturer. 

  • Protecting a global theatre company’s rights against a copyright infringer holding unauthorized productions of their internationally renowned musical.

  • Protecting a global fertilizer company’s rights against the misuse of their intellectual assets by a former licensee, following the termination of the license.

Datesort icon Title
November 13, 2020

Tilleke & Gibbins Named Thailand Firm of the Year in Who’s Who Legal Awards 2020

Tilleke & Gibbins has been named Thailand Firm of the Year at the Who’s Who Legal Awards 2020, held on November 12, 2020. Notably, this award marks the fifth consecutive year that Tilleke &...

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November 6, 2020

Tilleke & Gibbins Nominated for Three Women in Business Law Awards Asia-Pacific 2020

Tilleke & Gibbins has been nominated in three firm-wide categories in the Women in Business Law Awards Asia-Pacific 2020. The awards, which are organized each year by Euromoney to recognize firms...

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October 29, 2020

AMCHAM Thailand Recognizes Tilleke & Gibbins at 2020 CSR Excellence Awards

On Tuesday, October 27, Tilleke & Gibbins was singled out for an award for exceptional corporate social responsibility (CSR) work during the past 12 months at the 2020 CSR Excellence Awards, held...

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September 21, 2020

Asialaw Profiles 2021: Tilleke & Gibbins Dominates the Thailand Rankings

The recent publication of Asialaw Profiles 2021, a guide to the leading Asian law firms, saw Tilleke & Gibbins further maintaining its dominance of the legal market in Thailand. The firm earned...

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September 21, 2020

Tilleke & Gibbins Lawyers Recognized with 21 Individual Rankings in Asialaw Leading Lawyers 2021

A total of 21 Tilleke & Gibbins practitioners are recognized in the 2021 edition of Asialaw Leading Lawyers, a highly regarded guide to leading law firms and legal practitioners in the Asia-...

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November 25, 2020

Indonesia’s Omnibus Law Amends the Patent Law and the Trademark Law to Support Foreign Investment

Wongrat Ratanaprayul

Indonesia’s long-deliberated Omnibus Law (Law No. 11 of 2020) was enacted on November 2, 2020, implementing a number of amendments to Indonesia’s intellectual property laws. The law is intended to...

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September 16, 2020

COVID-19 Resource Center

As the global COVID-19 situation develops, Tilleke & Gibbins is dedicated to ensuring that our clients remain up to date on the most important legal developments in Southeast Asia as they happen...

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September 1, 2020

Apparel Company Has Legal Success in Combating Knockoffs in Indonesia

Wongrat Ratanaprayul, Rina Sinaga

A leading apparel company based in Spain, Original Buff, S.A., designs and produces apparel for outdoor, active, urban, and everyday wear. Their flagship product is a multifunctional, seamless,...

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July 23, 2020

Indonesia Adjusts Compulsory Licensing Guidelines in Preparation for Eventual COVID-19 Vaccine

Melinda Ambrizal, Wongrat Ratanaprayul

While the Indonesian government already has the power to exercise compulsory licensing through existing patent laws, a new regulation, thought to be a preemptive response to the development of a...

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June 15, 2020

Southeast Asia’s IP Offices Respond to the COVID-19 Pandemic

Darani Vachanavuttivong, Dino Santaniello, Jay Cohen, Linh Thi Mai Nguyen, Rochmali Zultan , Sher Hann Chua, Sokmean Chea, Wongrat Ratanaprayul, Yuwadee Thean-ngarm

The intellectual property offices of Southeast Asia have implemented measures ranging from deadline extensions to expanded online services to cope with office closures and other issues brought about...

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