1. First enter official website, China National Intellectual Property Administration, click "Patent Search Query" in the menu bar above, and then click "China Patent Query System" again after entering;
2. After entering the "China Patent Inquiry System", click "Click Enter" under the public inquiry, and then select "Agree to the above statement" to continue;
3. Enter the name of the patent, and then click "Basic Information" of the patent to view the basic information. You can see that the patent has been authorized, withdrawn or expired. There are generally three situations. If there are two announcement numbers under "Announcement of Invention and Authorization", the general patent is authorized. Details of the patent can be found under "Trading Announcement".
People's Republic of China (PRC) Civil Code
Article 859
Unless otherwise provided by law or agreed by the parties, the right to apply for a patent belongs to the research and development personnel. If the research developer obtains a patent right, the client may exploit the patent according to law. Where the research developer assigns the right to apply for a patent, under the same conditions, the trustor shall have the priority to be assigned.