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Son Thai Hoang

Senior Trademark Executive


Son Thai Hoang is a senior trademark executive in the intellectual property group of Tilleke & Gibbins’ Hanoi office, where he handles all matters related to trademarks in Vietnam, including filing and prosecuting trademark applications; handling oppositions, cancellations, invalidations, and appeals; and advising on and prosecuting trademark license and assignment agreements. With more than 15 years of experience, Son has successfully helped numerous clients protect their IP rights and overcome complex office actions issued by the Intellectual Property Office of Vietnam.

Son is an enthusiastic advocate for IP rights in Vietnam and regularly works with government agencies and universities to raise awareness of IP issues. He also serves as an instructor for INTA’s International Certificate Course.

Before joining Tilleke & Gibbins, Son worked at a top local IP firm as the head of the appeal department, and has gained considerable knowledge and practical experience in the protection of intellectual property rights with an emphasis on oppositions, appeals, and cancellations.


  • Represented and advised U.S.-based multinational pharmaceutical companies to successfully overcome various descriptive refusals and win opposition cases.
  • Acted for world-leading Japanese automobile companies in various cases of trademarks conflicting with others’ protected works of applied art and/or industrial designs.
  • Helped an association in Germany to prevent its trademark from being hijacked by another association in Vietnam that had already obtained a consent letter from the German Embassy in Vietnam for both registration and use of such trademark in Vietnam.
  • Advised a Singaporean coffee-manufacturing company in a trademark dispute with a world-leading fast-food company.
  • Represented and advised an American multinational retailing corporation in trademark bad faith cases committed by Vietnamese applicants.
ABOUT Son Thai






    LLB, Hanoi Law University

    BA, Hanoi Open University


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