Phoebe S. Sun

Senior Counselor

Phoebe started work in the patent profession in 1991, joined Lee and Li in 1996, and is now the coordinating counselor among partners of Patent Department. Phoebe specializes in patent matters in chemistry, material science, pharmaceutical and semiconductor, and mainly handles prosecution of patent applications and patent searches in Taiwan and China. Phoebe is also well experienced in rendering opinions on validity, infringement and freedom to operate, handling invalidation/ cancellation cases, and supporting patent infringement and administrative appeal and suit proceedings. Phoebe was in charge of a milestone case regarding patent term extension in Taiwan for a US pharma company, handles many patent infringement litigation cases for domestic and foreign clients in Taiwan and China, and represented domestic and foreign clients to attend interviews and court hearings in China for invalidation and infringement cases. In one of the infringement cases, around USD100 million damages was awarded for a US chemical company.

    Educational Background

    Taipei Medical University (mini EMBA in Smart Healthcare, 2018)
    New Jersey Institute of Technology (M.S. in Environmental Science, 1994)
    Chung-Yuan University (B.S. in Chemistry, 1990)


    Patent prosecution and administrative remedies,Patent infringement analysis/litigation support,Patent invalidation,Patent search (novelty/invalidity/FTO) ,Patent Landscape


    Member of International Association for the Protection of Intellectual Property (AIPPI)
    National Institute of Environmental Analysis, Environmental Protection Administration (1994-1995)
    Tsar and Tsai Law Firm (1991-1992)

    Contact Information

    Taipei Office
    Telephone:+886-2-2763-8000 Ext.2647