According to the definition, patent licensing means that the licensor (that is, the patentee) allows the licensee to use its patent within a certain time and scope. Patent transfer means that the patentee transfers all his patent rights to the assignee.
In addition, the transfer and licensing of patent rights must be confirmed by signing in writing. The establishment of a patent transfer contract must be registered and announced by the China National Intellectual Property Administration Patent Office before it can take effect. The transfer of the patent right of a unit owned by the whole people must be approved by the higher authorities. Units and individuals in China who transfer patent rights to foreigners must obtain the approval of the relevant competent authorities in the State Council. Patent licensing, also known as patent authorization, usually appears in the form of written contracts, which are called patent licensing and patent authorization contracts. It has the following characteristics: under the premise of the effective existence of patent right, the content is the transfer of patent implementation right, which is limited by the duration and geographical scope of patent right in time.