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Narongcachon CHOMSA

  • Partner
  • Bangkok

Narongcachon is a partner in Patent practice of our Bangkok Office. With 11 years’ experience in patent practice, he has dedicated a decade of his career to advising Japanese, Thai and international companies on patent matters in Thailand.

Narongcachon joined the firm in 2012 as a member of our Intellectual Property Practice Group. While in the IP department, he has conducted patent prosecution, advising relating to intellectual property matters, conducting patent searches and providing analysis and draft opinions based on the analysis. He is also very hands-on with giving advice on the patentability of an invention, infringement and opposition. He has extensive technical experience in preparing patent specifications, preparing and reviewing design drawings and descriptions, as well as preparing and filing patent, design and utility model applications and responses to office actions with the Thai Patent Office. He is also active in intellectual property and information technology court matters, as well as providing legal advice on emerging legal issues. Previously, Narongcachon worked in the telecommunications industry as a Technical Service Engineer and Service Manager, in the fields of telecommunications and data network technologies, with Siemens Limited Thailand, Siemens AG (Germany) and Nokia Siemens Networks (Thailand) Ltd. As a result, he has high technical expertise in telecommunications and data networks. With a long working history in the telecommunications industry and his academic background in engineering, Master of Business Administration (MBA) and related laws, he is a technical/business minded lawyer and is well attuned to legal developments in the intellectual property, telecommunication and information technology industries.

Awards & Rankings




Department of Intellectual Property (Patent Agent Course)
Lawyers Council of Thailand (Notarial Services Attorney License)
Lawyers Council of Thailand (Certificate of Litigation Course)
Ramkhamhaeng University (LL.B.)
Chulalongkorn University (MBA)
King Mongkut’s Institute of Technology Ladkrabang (BEng)

Professional Experience

SCL Nishimura 
Nokia Siemens Networks (Thailand) Ltd.  
Siemens Limited, Bangkok 
Siemens AG, Munich 
Siemens Limited, Bangkok