CS Partners Professionals
  • Zhenkun FuSenior Partner
    Trademark & Litigation Attorney

    Education: LL.M

    Zhenkun is a leading intellectual property law practitioner with more than 15 years experience in prosecuting trademark and patent infringement, unfair competition, and anti-counterfeiting cases.  His work with Fortune 500 companies has resulted in the recovery of millions of dollars in damages.  As a leading IP litigator, having managed thousands of lawsuits, Zhenkun’s groundwork and strategic insight, coupled with his exceptional relationships with AIC, BQS and PSB at national and local levels, makes him a key leader in intellectual property enforcement in China.


  • Brenda ZhaoSenior Partner
    MARQUES Unfair Competition Team Member

    Education: LL.M

    As a founding partner of Corner Stone IP and member of Mediation Committee of INTA & MARQUES, Brenda is an exceptional trademark attorney with about 20 years experience in the field. Her work not only includes providing support on the essential foundation of trademark matters in China, but also managing complex and contested opposition and cancellation matters. Brenda also counsels her clients on copyright and domain name registration and protection, as well as other intellectual property disputes. Brenda represents a number of well-known international companies and plays a fundamental role in securing and protecting their valuable intellectual property rights.


  • Jeffrey LiuSenior Partner
    Member of Anti-Counterfeiting Committee of INTA & ECTA

    Education: LL.M; MBA

    Jeffrey is an established trademark attorney whose experience includes trademark prosecution, investigations involving infringing and counterfeit goods, and administrative enforcement.  He is a key strategist in building the foundation for complex international cases.  Mr. Liu’s extensive domestic and international business and legal experience, along with his focus on customer service, has made him the firm’s international ambassador, laying the groundwork for the firm’s international footprint.


  • Bella ZhaoDeputy General Manager

    Education: PhD

    Ms. Bella graduated from Renmin University of China Law School, major in intellectual property. She joined Corner Stone & Partners in 2013, she has received recognition for her work with her legal expertise and management skills in IP advisories. She has been managing and advising legal teams in Corner Stone & Partners, handled cases for clients from domestic and abroad. Ms. Zhao is adept at litigation over international trademarks, patents and copyrights. She has given advisories to a large number of IP clients from famous enterprises domestically and abroad. She has earned her recognition by our clients for her professional law background, unique judgment, and efficient communication skills.


  • Maggie YangPartner
    Trademark Attorney

    Education: LLM

    Practicing intellectual property law in China for over ten years, Maggie represents domestic and international companies in trademark matters including strategy, prosecution, contested proceedings, licensing, well-known status, and disputes.  Her practice also includes copyright and domain name registration and enforcement.    Due to her deep knowledge and creative problem-solving approach, Maggie helps her clients develop and implement holistic and legally grounded intellectual property strategies in China.


  • Nick JiPartner
    Member of INTA Trademark Practice Committee / Trademark & Patent Attorney

    Education: Electronics Engineering, B.E.

    Nick’s broad based experience spanning more than 15 years includes representation in the consumer products, luxury goods, children’s products and media and entertainment industries.  Nick’s Electronics Engineering degree, along with his employment history with domestic and multinational IP agencies, enables him to analyze intellectual property issues from multiple practice disciplines.  His practice includes structured strategic intellectual property prosecution and enforcement.


  • John XiaPartner
    Trademark & Patent Attorney

    Education: Applied Meteorology, M.A.

    With a Masters degree in Applied Meteorology, John spent the first several years of his career in research at the Academy of Science. For the past twenty years John has devoted his attention to practice of intellectual property law. Certified by All China Patent Attorneys Associations as one of the first patent attorneys in the PRC, John has acquired a deep understanding of integrated circuit layout and design and new plant varietals. His practice includes patent prosecution, appeal, invalidation and administrative litigation, as well as counseling clients on trademark and copyright matters.


  • YongqiangPartner
    Patent Attorney

    Education: Ehime University (JAPAN)    Ph.D. & M.S. in Information Science

    Practice areas - Prosecution and enforcement of patents in the field of information processing technology, electronic / electrical engineering technology, automatic control, semiconductor technology , computer technology, wire and wireless communications, image processing, integrated circuit, multi-media technology, and e-commences; patent infringement analysis; legal opinion work.

    Work experience - Since graduation from Lanzhou University, Yongqiang engaged in research work in the Chinese Academy of Sciences for nearly seven years, then, went to Japan to study and work for more than eight years. Nearly fifteen years of research and work experience has accumulated rich experience in research and development. Yongqiang started practicing as a patent attorney at China Patent Agent (H.K.) Ltd. (CPA) in Beijing for 15 years. During this period of time he has handled a large number of cases for domestic and foreign companies. In 2012 Yongqiang got a chance to study Europe patent system and practice at Mewburn Ellis LLP in U.K and in 2016 got a chance to study Japan patent system and practice at AOYAMA & PARTNERS in Japan. Yongqiang joined CORNER STONE & PARTNERS In 2018 and is responsible for our Japanese Department. His experience and skills to look after clients from Japan and other parts of the world made him one of the core members of our patent team.