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the patent, make a query, and then click the "Basic Information" of the patent to see whether the patent is authorized, withdrawn or expired. Generally, there are three situations: if there are two announcement numbers under the "invention announcement/authorization announcement", the general patent is authorized. Details of the patent can be found under "Trading Announcement". It should be noted that utility model patents can only be retrieved after authorized publication, and invention patents can only be retrieved after pre-trial publication.
No unit or individual may suppress an inventor or designer's application for a patent for non-service invention-creation.
Unless otherwise agreed, the right to apply for a patent belongs to the invention-creation completed in cooperation with two or more units or individuals, or the invention-creation entrusted by other units or individuals; After the application is approved, the applicant unit or individual shall be the patentee.
Legal basis: Article 10 of the Patent Law of People's Republic of China (PRC).
The right to apply for a patent and the patent right can be transferred.
Where a unit or individual in China transfers the right to apply for a patent or the patent right to a foreigner, foreign enterprise or other foreign organization, it shall go through the formalities in accordance with the provisions of relevant laws and administrative regulations.
Where the right to apply for a patent or the patent right is transferred, the parties concerned shall conclude a written contract and register it with the patent administration department of the State Council, which shall make an announcement. The transfer of the right to apply for a patent or the patent right shall take effect from the date of registration.