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, 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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November 10, 2014

2014 Asia IP Awards: Tilleke & Gibbins Wins Patent and Trademark Awards

Tilleke & Gibbins has been named Patent Firm of the Year and Trademark Firm of the Year for Thailand at the 2014 Asia IP Awards, a set of annual awards conducted by Hong Kong-based legal...

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October 30, 2014

Legal 500: Tilleke & Gibbins’ IP Practice in Thailand Ranked in “Tier 1”

The Legal 500 Asia Pacific  has ranked Tilleke & Gibbins’ intellectual property group in Thailand as a Tier 1 practice for the twelfth year in a row. The rankings come with the release of...

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September 12, 2014

Asia IP Patent Survey 2014: Tilleke & Gibbins Ranked in Tier 1 for Thailand

Tilleke & Gibbins has been ranked as a “Tier 1” firm for both “Patent Contentious” and “Patent Prosecution” work in Thailand by Asia IP  in its annual Patent Survey. The survey provides an...

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June 4, 2014

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

For the second year in a row, Tilleke & Gibbins has been ranked as a “Gold Band” firm in Thailand by IAM Patent 1000 – The World’s Leading Patent Practitioners 2014, due to the outstanding nature...

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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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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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January 4, 2012

Lex Mundi Guide to Doing Business in Thailand 2012

This guide provides a detailed overview of doing business in Thailand. Topics covered in the guide include investment, import and export regulations, exchange controls, tax, requirements for...

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