Jiuliang Liu

Ranked in China: Domestic
IAM Research

The Patent 1000 focuses exclusively on patent practice and has firmly established itself as the definitive 'go-to' resource for those seeking world-class legal patent expertise.

Bronze - Individuals: prosecution

Founded in 1986 as China’s first privately owned IP practice, Sanyou IP remains a go-to for technically demanding patent applications. Currently home to 160 scientifically adept patent attorneys, the outfit has a crack prosecution team tasked with steering critical drafting matters by both domestic and global industry leaders. Having handled over 1,000 patent applications and almost 100 invalidation cases over the past 13 years, IP law doctorate holder Xiaolin Dang’s proven success extends from drafting to re-examination, licensing and disputes. Head of the patent drafting team Haiping Tao’s rich experience in patent filing allows her to undertake pedagogical tasks frequently as a Chinese IP law expert. Last but not least, electronics ace Jiuliang Liu matches portfolio management acumen with skill in patent proceedings in the fields of semiconductors and telecommunications.

Jiuliang Liu's Profile

Jiuliang Liu is a partner and senior patent attorney at Beijing Sanyou IP Agency Ltd, a full-service IP law firm founded in 1986 in Beijing.

Mr Liu graduated from Tsinghua University with a background in semiconductors and began his professional career as a semiconductor fabrication device research and development engineer. He has worked as a patent attorney at Beijing Sanyou since 2007. Now with more than 15 years of IP experience, he focuses his practice on patent prosecution and licensing, in particular:

  • the drafting of patent documents;
  • application;
  • office action responses;
  • invalidation;
  • re-examination;
  • infringement litigation;
  • patent search; and
  • legal consultation in the fields of:
    • semiconductors;
    • telecommunication;
    • electronics;
    • computer systems; and
    • related fields.

He works with organisations with sophisticated technologies across the semiconductor and wireless communications industries, immerses himself in their products, business goals, industry and competitive landscape. He leverages innovative technologies at every stage of the patent life cycle to deliver high-quality services in a consistent, timely and cost-effective manner. In the past 15 years, Mr Liu has handled over 800 patent applications and tens of patent invalidation cases.

Mr Liu is a member of the All-China Patent Agents Association and is a litigation agent recognised by the Supreme Court. He is also an off-campus tutor for the master of laws of the School of Law, Beijing Institute of Technology.

Firm Profile

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

Sanyou IP is headquartered in Beijing with several branch offices in Suzhou, Dalian, Hong Kong, and Japan. Now we have about 400 staff, including 160 patent attorneys, 50 patent engineers, 20 general lawyers and 40 trademark professionals.

As a leading IP law firm, Sanyou IP helps domestic and international clients to obtain and enforce their IP rights by providing wide-range and high-quality services. 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 working in this line of field for over 10 years, and several are former senior patent or trademark examiners of the China National Intellectual Property Administration.

Sanyou's patent team consists of experienced professionals. 75 per cent of our patent attorneys, patent engineers and translators have postgraduate degrees or above. 25 per cent of our patent team members have oversea educational background. Our area of practice includes: electronics, communications, computers, physics, mechanics, chemistry, biology, and pharmaceuticals, etc. We constantly strengthen ourselves by recruiting more talents in such fields as Internet of Things, Cloud Computing and Bio-pharmaceuticals.

Since its forming in 1996, Sanyou trademark team has accumulated professional experience in the field of trademark and has handled hundreds of thousands of trademark case in all kinds. There are over 30 professionals including trademark attorneys, attorney-at-law, and search/evaluation experts. In recent years, quite a few TM examination experts of national level have joined Sanyou as special advisers. The team has long been offering services in trademark applications and dispute resolutions with the aim of creating value for clients, which has won us numerous clients all over the world.

The legal team is proficient in prosecution, enforcement, litigation and non-litigation practices in patent, trademark, copyright, trade secret and unfair competition in the IP industry. The team has accumulated rich experience in patent infringement and invalidation litigation, owing to their accomplishment in the study of anti-fair competition law, as well as civil and business laws. Many of the team members are well-trained in legal theory and practice and some of them graduated from top universities in China such as Tsinghua University and Peking University, or famous law schools in US, UK and Japan. Some lawyers in the firm are hired as senior counsels by clients, chairing or participating in major and complex domestic cases, well-qualified for providing high-level legal services.

In recent years, Sanyou also founded the patent information and consultation department, which mainly focuses on novelty searches, prior art searches, FTO searches, patent navigation, analysis, early warning, and technology development searches, etc. The team consists of searching engineers, patent consultants and data engineers with rich experience are ready to provide searching and consulting services to the clients covering the whole industry chain and empowering comprehensive protection of IP rights.

Our motto is 'quality, efficiency and loyalty'. At Sanyou IP, we pride ourselves in the quality work and constantly strive to provide the highest level of services tailored to the individual needs of each client. Our team of legal professionals, with a wealth of experience and proven success in the full range of IP services, stands ready to assist the clients with their IP matters both in China and around the globe. 


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