Legal basis:
Article 14 of the Measures for the Registration of Patent Pledge: China National Intellectual Property Administration announces the following contents of patent pledge registration in the patent gazette: pledger, pledgee, main classification number, patent number, authorization announcement date, pledge registration date, etc. If the pledge of patent right is changed or cancelled after registration, China National Intellectual Property Administration shall register and announce it.
Article 10 of the Patent Law of People's Republic of China (PRC) * * * The patent application right and 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.