Intellectual Property and Technology

By providing high-quality and reliable service, BNG Legal has developed one of the leading IP practices in the Kingdom of Cambodia. From IP prosecution to anti-counterfeiting strategies, BNG has the depth of experience and resources to secure and protect their IPR portfolio.

List of Services:

  • Search and registration of trademarks, patents, copyright, utility models and other IPRs
  • IP portfolio maintenance
  • IP due diligence and clearance counseling
  • Licensing and franchising
  • Anti-counterfeiting and enforcement

Heads of Practice

Ms. Keopichchenda Long, Senior Legal Associate

Ms. Keopichchenda Long is a Legal Advisor and Head of the Intellectual Property & Technology Practice Group.

Keopichchenda holds a Master’s Degree in Corporate Law and International Affairs from the University of Jean Moulin Lyon III. She also holds two Bachelor’s Degrees: Bachelor Degree in Private Law from the University of Lyon II and a Bachelor Degree from the Royal University of Law and Economics in Law, under a joint program with Lumière Lyon II University in Cambodia. She is a member of Asian Patent Attorney Association (APAA), International Trademark Association (INTA), Intellectual Property Association of Cambodia (IPAC) and Cambodia Women Entrepreneurs Association (CWEA).
(Ms. Long’s Full profile)


Other Specialists


Dr. Darwin HEM (Naryth HEM), Attorney and Principal Partner

Darwin is a Principal Partner at BNG Legal and Head of the firm’s Intellectual Property Practice and Technology. He is a licensed Trademark Agent registered with the Ministry of Commerce of the Kingdom of Cambodia and admitted to practice law since 1997.

As a licensed Trademark Agent and Attorney, Darwin has significant experience in trademark prosecution and enforcement. He is familiar with the IP’s institutional frameworks in relation to the Department of Intellectual Property of the Ministry of Commerce as well as the Patent and Industrial Design Offices at the Ministry of Industry and Handicraft. Darwin has actively participated and conducted various conferences on Intellectual Property and technology development in Cambodia as well as in the region; and has also written several articles related to the update on Cambodian Intellectual Property laws and issues.

Dr Darwin Hem (Naryth HEM) is a member of the Working Party on the Accession of Cambodia into the World Trade Organization (WTO), the Asian Patent Attorneys Association (“APAA”). International Trademark Association (“INTA”), and a board member of the Intellectual Property Association of Cambodia (“IPAC”).
(Dr. Darwin Hem’s (Naryth HEM) Full Profile)


Ms. Lienghuy Lorn, Legal Assistant

Ms. Lienghuy Lorn is a legal assistant in Intellectual Property & Technology Practice Group. Sheis currently pursuing her Master degree in International Business and Comparative Law at Paris II Panthéon-Assas University delocalized in Cambodia. She holds a Bachelor degree in French Private Law from Lumière Lyon II University and a BachelorDegree of Cambodian Law from Royal University of Law and Science Economics.
(Ms. Lorn’s Full profile)

Representative Clients

Project Client Description
Anti-Counterfeit Counseling and Enforcement Global Car and Machinery Manufacturer In addition to registering its IP assets, BNG Legal has developed and implemented practical solutions to combat counterfeits entering the Cambodian market.
Copyright Infringement Litigation American Radio Broadcaster BNG Legal successfully defended, in Cambodian court, a US-based radio station against claims of copyright infringement brought by a local newspaper.
Trademark, Patent, and Industrial Design Multiple International Corporations and Law Firms BNG Legal has one of the leading IP prosecution practices in Cambodia. We register, maintain, and monitor a multitude of IPRs for clients around the world.