Thang Duc Nguyen

Head of Patent Group, Vietnam
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T: +84 4 3772 5573
F: +84 4 3772 5568




Vietnamese, English


LLB, Hanoi Law University

BA, Hanoi University of Foreign Studies

BSc, Hanoi Polytechnic University

Thang Duc Nguyen is a certified attorney-at-law and heads the patent group in Tilleke & Gibbins’ Vietnam offices. Thang specializes in prosecuting patent and industrial design applications for foreign clients in all industry sectors, from chemical to automotive to software. His efficient, methodical, detail-oriented working style has helped him handle more than 900 patent applications over 14 years in the practice area. Thang also advises clients on patent issues and strategies in Vietnam, and handles other proceedings related to patent and design.

An avid lifelong learner, Thang has earned degrees in the disparate fields of law, organic chemistry, and English, and has spoken and written on patent law for Vietnamese government agencies and international publications. Thang is a member of the Hanoi Bar Association and a Vietnam-qualified patent agent.

  • Conducted patent and design searches on behalf of clients in a wide range of industries.

  • Drafted patent specifications to accurately capture novelty and inventiveness while ensuring the broadest possible protection.

  • Filed and successfully registered inventions and industrial designs with Vietnam's National Office of Intellectual Property

  • Represented clients in filing appeals, oppositions, and cancellations to strengthen and defend their valuable patents.

  • Provided expert advice to clients on complex patent matters and disputes.

  • Invented and was granted a Vietnamese petty patent on a device to prevent myopia.

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November 12, 2015

Tilleke & Gibbins’ Vietnam IP Practice Receives “Tier 1” Ranking from Legal 500

For the ninth year in a row, Tilleke & Gibbins’ intellectual property (IP) group in Vietnam has received a “Tier 1” ranking from The Legal 500 Asia Pacific. The ranking was published in the 2016...

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November 4, 2015

Tilleke & Gibbins’ Vietnam Patent Practice Ranked in “Tier 1” by Asia IP

Tilleke & Gibbins’ patent practice in Vietnam has received top rankings from Asia IP  in the latest edition of the magazine’s Patent Survey. In the categories of “Patent Prosecution” and “...

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September 28, 2015

Tilleke & Gibbins Named Domestic Law Firm of the Year at TrustLaw Awards

Based on our “effort and enthusiasm in supporting pro bono clients over the last year,” Tilleke & Gibbins has been named the “2015 Domestic Law Firm of the Year” at this year’s TrustLaw Awards....

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July 6, 2015

Seven Tilleke Lawyers Recognized as “IP Stars” by Managing Intellectual Property

As part of its 2015 World IP Survey, Managing IP  has named seven Tilleke & Gibbins lawyers as “IP Stars,” placing them among the top practitioners in the field of intellectual property. IP...

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May 13, 2015

ALB IP Rankings: Tilleke’s Vietnam IP Practice Ranked in “Tier 1” in Two Categories

Tilleke & Gibbins’ IP practice in Vietnam has been ranked in “Tier 1” for “Patents” and “Trademarks/Copyright” by Asian Legal Business. The rankings were based on volume, complexity, and size of...

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May 14, 2015

Are Use Inventions Protected Under Vietnamese Law?

Thang Duc Nguyen

Like many developing countries, Vietnam has tended to exclude first and second (or subsequent) medical use inventions from patent protection in order to reduce drug prices. The patent office has...

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July 9, 2014

The Intellectual Property Review (Third Edition) – Vietnam Chapter

Thang Duc Nguyen, Loc Xuan Le, Linh Duy Mai

Tilleke & Gibbins’ top-rated intellectual property team provided the Vietnam chapter of the recently published The Intellectual Property Review (Third Edition), a guide to intellectual property...

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May 5, 2014

Vietnam Pharma Update 2014

While Vietnam represents a huge potential market for foreign investors in the pharmaceutical industry, the sector is heavily regulated and clear guidelines are not always available. To guide...

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July 5, 2013

Intellectual Property in Vietnam: Registration, Protection, Commercialization

The importance of protecting and enforcing your intellectual property (IP) rights can never be stressed enough. Without taking precautions, your business’s intellectual assets are more vulnerable to...

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May 27, 2013

Invention Secrecy in Vietnam

Thang Duc Nguyen, Thanh Phuong Vu

Patent law hinges on the disclosure of secrets. To be granted a patent, an inventor is required to publicly disclose his or her invention—often in great detail—in exchange for the exclusive rights to...

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