Manoon Changchumni
Principal and Thailand Country Manager

Manoon is a Principal and the Country Manager of our Thailand business. 

Manoon is a qualified Thai Patent Agent and Attorney at Law with over twenty eight years' intellectual property (IP) experience in Thailand.

Manoon has advises on trade mark, patent and design disputes. He also supervises the management of patent and design portfolios, and IP lectures on patents at universities and government institutions. 

He handles a wide range of matters relating to IP law, including patent and trade mark registration, oppositions, appeals, cancellations and advising in relation to IP strategy, acquisitions and compulsory licensing issues and negotiating in relation to conflicts.

He also has solid experience in IP enforcement. He represents numerous clients in the consumer products business, as well as clients in the food and beverage, cosmetics, electronics, automobile, and entertainment industries.

Professional qualifications

  • LLB, Ramkhamhaeng University, Thailand

  • Summer IP Program, IP Summer Institute, United States of America

  • Advanced IP Licensing Programme, Advanced Licensing Institute of Franklin Pierce Law Center, United States of America

  • IP Rights Training Course, Association for Overseas Technical Scholarship and Japan Institute of Invention and Innovation (JIII), Japan

  • Notarial Services Training Course, Lawyers Council of Thailand, Thailand

Professional memberships

  • International Trademark Association

  • Intellectual Property Association of Thailand


  • WTR 1000, 2020: Tier 2 for Enforcement and Litigation
  • IAM Patent, 2019: “Recommended Individual”
  • Chambers Asia Pacific, 2018: “Notable Practitioner”

Personal interests

  • Travel, sports and F1