Ampolphan Sriduangchan

Attorney-at-Law & Patent Agent
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T: +66 2653 5746
F: +66 2653 5678




Thai, English


LLB, Thammasat University

Ampolphan Sriduangchan is an attorney-at-law and a patent agent in Tilleke & Gibbins’ intellectual property group. Ampolphan is responsible for matters related to patent registration, license agreements, annuity fees, and appeals in Thailand and has patent drafting experience. She is also qualified to provide notarial services and has a certificate in International Trade Arbitration.

Ampolphan is a member of the Thai Bar Association, the Lawyers Council of Thailand, and the Intellectual Property Association of Thailand.

  • Appealed the rejection of a client’s product design to the Board of Patents. The Board held that the client’s product design was not the same design as the patented design and allowed the registration of the client’s design as a Design Patent.

  • Drafted a petition covering three complex cases; this petition was ultimately accepted for review by the Board of Patents.

  • Secured the registration of a patent after a lengthy review and administrative process.

  • Advised an international insecticide technology company on patent drafting and filing. The matter involved freedom to operate searches, strategic reshaping and amending of the patent, and advising on an international filing plan.

Datesort icon Title
November 12, 2015

Legal 500 Awards “Tier 1” Ranking to Tilleke & Gibbins’ IP Practice in Thailand

Placing our firm at the pinnacle of the legal market, The Legal 500 Asia Pacific has ranked Tilleke & Gibbins’ intellectual property (IP) group in Thailand as a “Tier 1” practice for the...

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November 4, 2015

Asia IP Patent Survey 2015: Tilleke & Gibbins’ Patent Practice Ranked “Tier 1” in Thailand

Tilleke & Gibbins has been named a “Tier 1” firm in Thailand for “Patent Prosecution” and “Patent Contentious” work in Asia IP’s most recent Patent Survey. The Patent Survey features patent news...

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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 24, 2015

Thailand: Patent Applications Now Subject to Strict Deadlines on Submission of Formal Documents

The Thai Department of Intellectual Property (DIP) has introduced new guidelines limiting the ability of patent applicants to request extensions on the submission of certain formal documents. The new...

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June 23, 2015

IAM Patent 1000 2015: Tilleke & Gibbins Ranked in “Gold Band” for Patent Services in Thailand

For the third year in a row, in the 2015 edition of IAM Patent 1000 – The World’s Leading Patent Practitioners, Tilleke & Gibbins has been ranked as a “Gold Band” firm in Thailand for its...

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January 7, 2015

Lex Mundi Guide to Doing Business in Thailand 2015

Tilleke & Gibbins, in association with Lex Mundi, has published the latest edition of the Guide to Doing Business in Thailand. The guide provides a comprehensive overview of the legal and...

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May 14, 2014

Thailand Legal Basics

Thailand Legal Basics, a valuable primer for foreign investors, explores all aspects of living and doing business in Thailand. Written by Tilleke & Gibbins, the book begins with an overview of...

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March 20, 2013

Lex Mundi Guide to Doing Business in Thailand 2013

Published by Tilleke & Gibbins in association with Lex Mundi, the Guide to Doing Business in Thailand  provides a comprehensive overview of the legal environment for investors entering the...

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September 5, 2012

The Report: Thailand 2012 – Legal Framework

The Report: Thailand 2012, published by Oxford Business Group, provides an in-depth analysis of different sectors of the Thai economy. Tilleke & Gibbins contributed the legal section of the...

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July 11, 2012

Guide to Doing Business in Thailand for Japanese Investors

Pimvimol (June) Vipamaneerut, Sriwan Puapondh, Chaiwat Keratisuthisathorn, Charunun Sathitsuksomboon, Ampolphan Sriduangchan, Kobkit Thienpreecha, Titikaan Ungbhakorn

This Japanese-language Guide to Doing Business in Thailand was prepared by Tilleke & Gibbins in collaboration with Nishimura & Asahi, the Lex Mundi member firm for Japan. Written for...

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