Shiyu Dai
Trademark Agent

Shiyu specializes in trademark services within the intellectual property sectors of Singapore and Taiwan. She possesses extensive expertise in trademark strategy, prosecution, and enforcement, serving a wide range of enterprises. Her work spans multiple industries, including pharmaceuticals, household appliances, automotive machinery, electronics, food products, beauty and skincare, and apparel.

Since beginning her career in trademark agency services in the Greater China region, Shiyu has worked with numerous Fortune 500 companies and internationally renowned law firms. She has managed over 5,000 trademark registration and dispute resolution cases, gaining substantial experience in trademark protection throughout the Greater China region. Shiyu is well-versed in international trademark law and has deep expertise in handling both prosecution and contentious matters in Singapore.

Known for her meticulous legal analysis and exceptional bilingual capabilities, Shiyu consistently delivers high-caliber services. By conducting thorough assessments of clients’ business needs and market environments, she develops tailored intellectual property protection strategies across various industries. Her commitment to efficient and timely communication reflects her dedication to safeguarding clients’ interests and maximizing the value of their intellectual property assets.

Trademark Prosecution / Litigation & Dispute Resolution
Taiwan / Macau / Singapore

Professional Experience

  • Trademark Agent   Chang Tsi & Partners (since 2020)

Representative Clients

  • Amazon
  • ByteDance
  • Tencent
  • Geely
  • Midea
  • Cummins

Representative Cases

  • Opposition of Malicious Trademark Registration in Taiwan: Represented a multinational corporation in filing a trademark opposition against a third party's malicious registration of an air compressor brand in Taiwan. Despite the client's lack of effective trademark registrations in Taiwan and undergoing significant corporate changes such as mergers and dissolutions, a bespoke strategy was formulated. Through meticulous evidence gathering, compelling proof of the third party's bad faith was identified. Over nearly two years, four rounds of arguments and thousands of pages of evidence were submitted, ultimately establishing the third party's malicious intent. The opposition was successful, resulting in the cancellation of the malicious registration and the protection of the client's trademark rights.
  • Trademark Registration for AIGC Music App Icon: Drafted a response to an office action for the icon of an AIGC music application developed by a technology company. In the context of increasingly stringent examination standards, a flexible argument strategy and comprehensive supporting materials were employed, effectively persuading the examiners of the distinctiveness of the musical note design within the icon, leading to its successful registration as a trademark.

Education

  • Bachelor of Arts, Beijing Language and Culture University

Language

  • Mandarin Chinese
  • English