Salil Siriwat is a senior associate at Lexpertise Law Firm and a registered Thai Patent Agent with 12 years of post-qualification experience. She specializes in patent prosecution and serves as a key technical advisor for complex, science-related litigation matters. With a strong background in biology and a decade-long track record in intellectual property law, Salil bridges legal strategy and technical precision in high-stakes patent and regulatory cases.

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Her practice covers the full patent lifecycle—from conducting prior art and freedom-to-operate (FTO) searches to drafting patent specifications and providing infringement and invalidation analyses. She plays a crucial role in the firm’s litigation team, supporting contentious matters involving pharmaceuticals, chemicals, packaging, and biotechnology. Salil is experienced in coordinating expert witnesses, overseeing lab testing, and interpreting scientific data to build strong technical narratives for use in court.

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In addition to her IP practice, Salil advises clients on regulatory compliance and product registration involving hazardous substances, pesticides, fertilizers, animal feed, and plant protection products. Her expertise also spans environmental and plant variety protection laws, especially in projects requiring scientific documentation and inter-agency coordination.

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Before joining Lexpertise, Salil worked at a leading regional law firm, where she handled a wide range of patent matters including prosecution, enforcement, and litigation. She later served as an IP management expert for a major Thai packaging company with a sustainability focus, contributing to the development of its patent portfolio and innovation roadmap.

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Salil’s dual strengths in science and law, combined with her extensive experience, make her an indispensable asset to the firm’s IP and litigation teams. Her ability to translate complex technical matters into actionable legal strategies ensures that clients receive both practical and legally sound guidance across industries.