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Sirikul Ngawiset

Associate & Patent Agent


Sirikul Ngawiset is an associate and patent agent in Tilleke & Gibbins’ intellectual property group in Bangkok. With a strong focus on patent law and special expertise in the dynamic field of biotechnology, she helps companies in a wide spectrum of industries achieve patent protection for their complex technologies and innovations. In addition to ensuring robust intellectual property protection for her clients’ intellectual assets, Sirikul takes action that empowers her clients to secure and commercialize their new inventions.

Sirikul’s core services include filing patent applications and conducting patent searches, patentability assessments, and patent landscape and patent infringement analyses. With a keen eye for detail, Sirikul is a go-to expert for preparing, drafting, and reviewing patent specifications to ensure complete accuracy and compliance with legal standards.

Prior to joining Tilleke & Gibbins, Sirikul was a patent agent at a Thai government agency for research in science and technology, a patent prosecution associate at another prominent law firm in Bangkok, and an intellectual property analyst at the research and development arm of a major Thai conglomerate.

Sirikul holds an MSc in Biochemistry and Molecular Biology and a BSc in Biochemistry from Chulalongkorn University, as well as an LLB from Sukhothai Thammathirat Open University. She is a patent agent licensed by Thailand’s Department of Intellectual Property, and has completed the Patents course from WIPO Academy and the South East Asian Drafting Course from the FICPI Academy of Education.


  • Drafted patent specifications to secure robust intellectual property protection for various companies in the ever-evolving field of biotechnology—including in fields such as genetic engineering, agriculture, food science, medicine, and pharmaceuticals.
  • Analyzed and evaluated the patentability and market potential of a diverse array of innovations, spanning multiple fields, on behalf of numerous technology companies.
  • Conducted comprehensive patent analyses, including patent landscape assessments and freedom-to-operate (FTO) analyses, tailored to the specific needs of a client in the dynamic life sciences sector.
  • Provided strategic intellectual property counsel to companies by conducting thorough assessments of their patent specifications and related agreements, facilitating optimal protection and commercialization of their innovations.
  • Managed patent portfolios for various companies, which entailed overseeing the entire lifecycle of patent applications from initial application drafting and prosecution to the ultimate grant of patents.
ABOUT Sirikul






    MSc, Chulalongkorn University

    LLB, Sukhothai Thammathirat Open University

    BSc, Faculty of Science, Chulalongkorn University


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