Marks & Clerk

Firm overview:

Marks & Clerk has been active in China since 1984, with offices in Hong Kong and Beijing, the latter among the country’s oldest international IP offices. The firm provides practical, high-quality services across patent, trademark, and copyright matters, including prosecution, enforcement, and disputes. A bilingual team with expertise in Chinese and international law helps clients protect, manage, and enforce their intellectual property in China effectively.

Team overview:

Zephyr Su is a PRC- and UK-qualified patent attorney specialising in patent prosecution, invalidation proceedings, and enforcement. His expertise spans AI, microelectronics, IT/software, blockchain, and telecommunications. Fluent in English, Mandarin, and Cantonese, he advises Chinese and international clients on patent strategy, risk management, and cross-border IP enforcement, forming the foundation of the firm’s patent advisory capabilities.

A senior associate in Beijing, Frank Yang advises on patent litigation, licensing, technology acquisition, and transactional IP matters. Fluent in English and Mandarin, he helps clients maximise the commercial value of their patents and manage complex cross-border IP issues in China.