Beijing Sanyou Intellectual Property Agency Ltd

IAM Research

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Silver - Firms: prosecution

“Beijing Sanyou is special to us because of the professional relationships and trust we have developed with their leadership team.” Partner, patent attorney and qualified lawyer Xiaolin Dang is foremost among Beijing Sanyou practitioners, having handled over 1,000 patent applications and almost 100 invalidation cases over the past 13 years. The 180 patent attorneys that make up the crack prosecution team are tasked with steering critical patent applications through the grant process by both foreign and domestic clients. One recent highlight was an important matter for LG Chem, where Beijing Sanyou representatives secured the revocation of an examiner’s rejection based on deep understanding of the underlying technology. “They provide strategic advice on substantive matters, professional quality correspondence, attention to detail, precision in billing and genuine care for the clients’ best interests,” expounds one foreign associate, adding: “The number of important patent cases our firm has entrusted to Beijing Sanyou has increased significantly.”

Firm Profile

Founded in 1986, Beijing Sanyou Intellectual Property Agency Ltd was the first private IP firm in China.

Now a leading IP law firm, Sanyou IP helps domestic and international clients to obtain and enforce their IP rights by providing wide-ranging, high-quality services. In 2011, upon the completion of a streamlining management procedure, Sanyou IP obtained the ISO 9001 certification for quality management.

By emphasising professionalism and craftsmanship, Sanyou IP has been named an Outstanding Patent Agency and an Outstanding Trademark Agency for several consecutive years. Our team of motivated and professional attorneys represents a combination of the highest technical and legal qualifications and years of practical experience. Many of our attorneys have been practising since the establishment of the Chinese patent and trademark systems, and several are former senior patent examiners for the patent office of the China National Intellectual Property Administration, or former first-rank examiners of the Patent Re-examination Board. Our clients consequently benefit from our unparalleled insight into China’s IP laws and procedures.

Our headquarter is located in Beijing and we also have branch offices in Suzhou, Dalian, Hong Kong and Japan. Sanyou IP has approximately 400 staff, including 160 patent attorneys, 50 patent engineers, 20 general lawyers and 30 trademark professionals, all practising under four interrelated entities:

  • Beijing Sanyou Intellectual Property Agency Ltd;
  • Beijing Wanrui Law Firm;
  • Beijing Sanyou Xinbo IP Consulting Co Ltd; and
  • Sanyou International IP Service Ltd.

With such talented people, we offer a one-stop IP service to our clients. We provide a comprehensive range of IP services relating to the prosecution and litigation of patents, trademarks, copyright, domain names, unfair competition and trade secrets. Our expertise encompasses all major technical fields, including biochemistry, biology, chemistry, computer science, physics, optics, materials, electrical, electronics, engineering, mechanics, pharmaceuticals and telecommunications.

Our motto is “quality, efficiency and loyalty”. At Sanyou IP, we pride ourselves on the quality of our work and constantly strive to provide the highest level of service tailored to the individual needs of each client. Our team of top legal professionals, with its wealth of experience and proven success in the full range of IP services, stands ready to protect clients’ IP rights both in China and around the globe.

As a standing committee member of the All-China Patent Agents Association (ACPAA) and the China Trademark Association (CTA), Sanyou IP plays an active and important role in China’s IP industry. Sanyou IP is a member of several international IP organisations, such as the International Trademark Association (INTA), the International Association for the Protection of Intellectual Property (AIPPI) and the Licensing Executives Society (LES).

Having been dedicated to intellectual property for over 30 years, Sanyou IP is always looking to improve its services and quality of work. The firm is trusted and supported by businesses across the industry.

Firm and team members’ affiliations

  • Vice president of the ACPAA
  • President of the Capital Intellectual Property Services Association
  • Standing committee member of the CTA
  • Corporate member of the Beijing Patent Agents Association
  • Executive council member of the Copyright Society of China
  • Member of INTA
  • Member of the AIPPI
  • Member of LES
  • Member of the International Federation of Intellectual Property Attorneys
  • Standing committee member of the China Intellectual Property Society

The firm acts also as the intern training base for the LLM in IP laws of Peking University.

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