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Adirek (Derek) Siriwattasit



Adirek (Derek) Siriwattasit is a consultant in Tilleke & Gibbins’ intellectual property department in Bangkok, specializing in patent, petty patent, and design patent prosecution in Thailand and internationally. He assists local and multinational clients in managing patent application filings, examining and revising technical translations of claims and specifications for conformity, as well as analyzing office actions. Derek’s in-depth knowledge of chemistry makes him a particularly sought-after advisor for ensuring the accuracy of technical translations for patent applications relating to the petrochemical and metallurgical industries.

Derek graduated with an LLB (Hons) from Northumbria University, Newcastle, where he was the recipient of the London College of Legal Studies award for Best Undergraduate Performance. He also holds an MBA in Finance and a BSc in Business Informatics from AMA International University, Bahrain, and is fluent in both Thai and English.


  • Reviewed and revised the technical translations of patent claims and specifications for a major chemical manufacturing and supply company in India under tight deadlines to ensure the smooth registration of their patent applications.
  • Analyzed, translated, and assisted in the interpretation of office actions for clients representing a wide range of industries.
  • Facilitated the filing and successful registration of numerous patents, petty patents, and designs with the Thai Department of Intellectual Property.
ABOUT Adirek








    LLB, Northumbria University

    MBA, AMA International University

    BSc, AMA International University


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