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
March 16, 2015

ALB Power List 2015: Tilleke & Gibbins Ranked Among Top Law Firms in Asia

Placing our firm at the pinnacle of Asia’s legal market, Asian Legal Business  has ranked Tilleke & Gibbins among the top ten “domestic” law firms in Asia in the inaugural edition of the...

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March 12, 2015

Tilleke & Gibbins Named Firm of the Year 2015 for Asia by Managing IP

In what marks a momentous occasion for Tilleke & Gibbins, our firm is honored to have been named the “Firm of the Year 2015” in Asia by Managing Intellectual Property  magazine. This award,...

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February 13, 2015

Chambers Asia-Pacific 2015: Tilleke & Gibbins’ IP Practice Ranked in Top Tier

Placing our firm at the pinnacle of the legal market, Tilleke & Gibbins’ intellectual property practice in Thailand has been ranked in “Band 1” in the Chambers Asia-Pacific 2015  rankings....

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February 11, 2015

Managing Intellectual Property: Tilleke & Gibbins’ Patent Team in Thailand Ranked in Tier 1

For the thirteenth year in a row, Tilleke & Gibbins’ patent team in Thailand has been ranked in “Tier 1” for both patent prosecution and patent contentious work in Managing Intellectual Property’...

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November 12, 2014

Asialaw Profiles 2015: Tilleke & Gibbins’ Thailand Team “Highly Recommended” in Nine Practice Areas

Placing our firm at the pinnacle of the Thai legal market, Asialaw Profiles 2015  has ranked Tilleke & Gibbins as a “Highly Recommended” firm in nine practice areas. The rankings, which are...

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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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