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China Science Patent & Trademark Agent Limited ("China Science" or "CSPTAL") is a full-service intellectual property law firm in China. Established in 1984, the same year when China's patent law was first promulgated, China Science has actively represented its foreign and domestic clients in their pursuits of intellectual property rights and protection over 34 years. China Science has been recognized as a premier IP firm by clients all over world.


 China Science started its business in 1984 as an exclusive agent working for and under the Chinese Academy of Sciences, the state-funded national research institute. Our firm then became one of the first few firms granted a special license by the State Council to handle foreign-related intellectual property matters. In the 1990's, China Science became a private firm wholly owned by its shareholders. Since then, China Science has entered into a period of significant growth under the leadership of Ms. Yue Li. As of 2019, there are 300 professionals and staff in total, including 160 patent agents, 18 of whom also possess legal professional qualification. Among them, 85 have been working at China Science for more than 10 years. They currently work in our offices of Beijing, Shanghai, Tianjin, Wuhan, Hong Kong, Osaka, Tokyo, Washington D.C., and Paris.At China Science, we are devoted to providing high quality service to meet our clients' need and maximizing the value of their intellectual property assets in China.

Technical Expertise
Strong technical expertise is what we believe adds values to our clients' demand. A sophisticated level of technical expertise and actual practice experience enables us to put a product or process out of the inventor's ingenuity into an as broad as possible scenario of relevant products and technologies. It offers a powerful benefit to our clients in drafting, prosecuting and even litigating patents. Each and every one of our 160 professionals has a science or engineering degree, with 17% of them having Ph.D. degree and 80% with Master's degree in a wide range of technical disciplines. More than one third of our professionals have had R&D experience in universities, research institutes and industries before they started the patent law practice. Ten patent attorneys held titles of senior research fellows at the Academy back in 1984, and today they are among the most experienced patent attorneys in China. Our technical expertise is further strengthened through continued recruitment of new talents from the Academy and the best universities of the country.

International Experience
China Science boasts a team of attorneys equipped with ample international experience in working with overseas companies and organizations. A large portion of our clients are multinational companies from various countries. We have supported their needs to protect, exploit or litigate intellectual property rights in China. We also provide a full complement of patent and trademark agency services to associate firms of more than 20 jurisdictions.

As backgrounds, many of our attorneys had studied, worked or received professional trainings in the United States, Japan, Europe, or Canada, especially in law firms in these countries. We continue to dispatch annually our attorneys to have internship at foreign law firms or clients' sites to keep abreast with developments in intellectual property practice in important jurisdictions and for better understanding of clients' needs.

Full Coverage on IP services
Our service includes a wide range of intellectual property activities -- procurement and enforcement of IP rights, licensing or litigation of these rights, IP portfolio management, and building up corporate China IP strategies. Please refer to the next page for more specific information.

We are also involved proactively in major Chinese IP organizations and forums, such as the All-China Patent Agents Association and the China Intellectual Property Society, to provide our contributions in shaping up Chinese IP legal systems and law making processes.

Quality Assurance
We attach importance to quality of our work and invest heavily in quality assurance system. We achieve quality work not only by a team of excellent attorneys, but also by a well-established quality control mechanism. We established a firm-wise quality committee to closely monitor daily work quality. The quality committee consists of senior members of our firm. It sets forth the standard of service and organizes mandatory training programs to ensure the fulfillment of the standard.

A Trusted Partner for Clients and Associates
Over the past 35 years, China Science has grown itself steadily in size and competence and made its name through quality work and excellent services to its clients. We have been entrusted with many different kinds of IP work and become one of the largest firms in China today. We are proud of providing our contributions to our clients' Chinese business growth and commercial success. We commit ourselves to become a long-term trusted partner to our clients in their endeavors in China.

Our patent service covers all technical fields including electrical engineering, mechanical engineering, chemical engineering, and biotechnology:
Drafting and prosecution of patent applications
Reexamination, invalidation and appeals
Judicial and administrative litigations
Counseling on corporate IP management
Opinions on infringement and/or invalidity
Patent search and patent watch
Technology licensing and transfer

Our trademark service includes:
Registration, renewal, assignment, and licensing
Reexamination, cancellation, opposition, disputes and administrative litigations
Infringement litigations and administrative enforcement

The firm's service also includes:
Copyright litigations and registration of software copyrights
Enforcement of IP rights at Customs
Protection of domain names

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