Vivian Or is a senior associate in the IP & TMT group of Mayer Brown. Her practice focuses on trademark prosecution in Hong Kong, China and overseas. She advises on trademark pre-filing searches, trademark applications through to registration, trade mark opposition, revocation, cancellation and invalidation proceedings, trademark post-registration matters and trademark portfolio management.

Spoken Languages

  • English
  • Cantonese
  • Mandarin


  • Manages the Hong Kong trade mark portfolio for a renowned e-commerce company.
  • Manages the worldwide trade mark portfolio of an established group of companies specializing in property, beverages business and advises them on brand protection and enforcement of trade marks in China.


University of London, LLB, Second Class Honours (Lower Division)

The University of Hong Kong, Bachelor of Arts, First Class Honours


  • Hong Kong