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Pongchaiwat Jirayustienjinda



Pongchaiwat Jirayustienjinda is an associate in Tilleke & Gibbins’ intellectual property department. He assists both international and local clients in securing and defending their intellectual property rights, and helps them take effective action against infringers and bad-faith actors. Pongchaiwat is also active in supporting Tilleke & Gibbins’ leading regulatory affairs team, where he assists clients in the life sciences industry to navigate the regulatory regime applicable to their products in Thailand. Pongchaiwat earned his LLB from Chulalongkorn University, where he served on the student committee of the Faculty of Law, and was a member of the Thailand chapter of the Asian Law Students’ Association.


  • Assisted a global optical technology manufacturer in obtaining the removal of a website selling counterfeit products, by researching and implementing a new legal pathway in Thailand for taking down trademark-infringing websites.
  • Represented a leading manufacturer of writing implements in pursuing negotiations with a Thai company whose registered trademarks had the same name as the client’s business.
  • Supported a litigation team in securing a victory for a well-known international fashion brand whose trademark was being infringed by a chain of Thai stores that were using the client’s name and branding without authorization.
  • Worked with Tilleke & Gibbins’ IP enforcement team on behalf of a manufacturer of seals and bearings in pursuing criminal raid actions, resulting in the seizure and removal of a significant amount of counterfeit bearings from the Thai market.
  • Represented a hard disk drive manufacturer and data storage company in IP litigation matters concerning the rejection of the client’s trademark application.
ABOUT Pongchaiwat


Life Sciences






    LLB, Chulalongkorn University


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