Threenuch Chatmahasuwan 

Threenuch Chatmahasuwan 

Senior Associate
ZICO Law Thailand
d.+66 2 6777 589f.+66 2 6777 589


Threenuch is an experienced senior associate in the intellectual property department of ZICO Law in Thailand.

She has more than 11 years of experience in intellectual property practice. She primarily focuses on trademark prosecution and related issues. Her exceptional expertise includes providing legal advice and strategies for clients to register and secure their trademark rights in Thailand and worldwide, conducting trademark searches and analysing the registrability of proposed marks, preparing and filing trademark applications, handling appeal petitions, oppositions and cancellations, conducting preliminary IP related investigations, business and settlement negotiations, etc. Threenuch has served her clients various industries such fashion and luxury, software and electronics, chemicals, cosmetics, healthcare and pharmaceuticals, food and beverage industries.


Threenuch previously worked as Attorney-at-Law in the intellectual department at Tilleke & Gibbins International Ltd. in Thailand from 2004-2015. She joined ZICOlaw (Thailand) Limited as Senior Associate in early 2015.


  • LL.B. (2nd Class Honors), Thammasat University, Bangkok, Thailand
  • M.A. in Economic Law, Chulalongkorn University, Bangkok, Thailand
  • Lawyer’s license
  • Registered Notarial Services Attorney qualified to certify signatures and documents
  • Registered patent agent