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Manoon Changchumni

Principal

Bangkok

+662 028 2244

Biography

Manoon is a Principal specialising in contentious intellectual property (IP) matters and litigation. He is a qualified Thai Patent Agent and Attorney at Law with extensive experience in IP across Thailand. 

Currently, Manoon provides expert advice on IP disputes, patent and trade mark litigation, and represents leading local companies in securing patent protection both in Thailand and internationally. 

He has comprehensive experience in various aspects of IP law, including patent and trade mark registration, preparing and recording IP license agreements, advising on IP acquisitions and compulsory licensing issues, and negotiating conflict resolutions. Manoon represents numerous clients across a wide range of industries, including consumer products, food and beverage, cosmetics, electronics, automobiles, and entertainment. 

In addition to his client work, Manoon shares his expertise by lecturing on IP law at universities and governmental institutions and speaking at seminars and training courses. 

Alongside the head of Rouse Thailand's dispute resolution team, Manoon has successfully led efforts in representing both domestic and international clients in enforcing their IP rights and defending them in legal disputes. His cases include patent infringement and invalidation actions, trade mark infringement and cancellations, and appeals against decisions of the Trademark Board before the IP Court of First Instance, reaching decisions in the Supreme Court. 

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

Memberships

  • International Trademark Association
  • Intellectual Property Association of Thailand

Awards

  • Chambers Asia-Pacific, 2023-2024: Band 3
  • IAM Patent, 2023-2024: Ranked "Silver"
  • Who's Who Legal, 2023-2024: Recommended (Patents)
  • Legal 500, 2021-2024: Mentioned practice head
  • WTR 1000, 2020-2024: Ranked "Silver" for Enforcement and Litigation
  • IAM Patent, 2018-2021: “Recommended Individual”
  • Chambers Asia-Pacific, 2018, 2020, 2021, 2022: Listed as “Notable Practitioner”

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