
Orrick, Herrington & Sutcliffe LLP‘s full-service IP practice covers trade marks, copyright and trade secrets; while its China-based team of patent lawyers, who frequently have engineering or science degrees, assist with cross-border patent disputes and trade secret matters. Dividing his time between New York and Beijing, partner-in-charge for Asia Xiang Wang also heads the firm’s China IP, data privacy and cybersecurity practices. Wang has significant experience in assisting domestic and foreign-based multinational companies with their IP rights in the US and China. Yufeng (Ethan) Ma in Beijing is an expert in IP litigation involving patent infringements, trade secrets and unfair competition, as well as IP strategies and the IP aspects of licences, M&A and joint ventures.
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Key clients
- Anker Innovations
- Baidu
- BOE Technology Group Co
- Corning
- Hisense Group Corporation
- Micron
- Shanghai Sansi Electronic Engineering Co
- Shenzhen Intellirocks Tech Co
- Trina Solar
- Weichong Semiconductor
- Zhejiang Mitsuo Seed Co
- 4th Paradigm (Beijing) Technology Co
Work highlights
Represented BOE Technology in a high-stakes patent infringement case before the United States International Trade Commission.
Representing Trina Solar in a multi-forum patent enforcement campaign against competitors Runergy and Adani, in relation to next- generation TOPCon photovoltaic technology.
Represented Sansi LED Lighting in patent litigation against Lighting Defense Group in the US District Court for the District of Arizona.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Practice head
Xiang Wang; Yufeng (Ethan) Ma
