Leigh Tong is an associate in the IP & TMT practice in Mayer Brown's Hong Kong office. She is experienced in managing global trademark, patent and registered design portfolios, including advising clients on all trademark matters, including clearance searches, Trademark Registry objections, trade mark oppositions, revocations, invalidation and cancellation actions. Leigh also advises on IP enforcement, piracy and brand protection strategies globally. 

Before joining Mayer Brown, Leigh was a Group Legal Counsel to a leading Hong Kong telecommunications and media company.


  • Advised clients in wide range of industries on all aspects relating to their global branding strategies, portfolio management and IP enforcement actions.
  • Drafted a trade mark license agreement for AI software company in China. 
  • Conducted trade mark clearance searches and infringement assessment for clients in various industries.
  • Managed the global IP portfolio of multinational client, including trade mark oppositions, cancellations and invalidation actions.


The University of Hong Kong, PCLL

The London School of Economics and Political Science, LLB


  • Hong Kong