General license: refers to that the patentee licenses others to exploit the patent within a certain period of time, and reserves the right to license a third party to exploit the patent. This method can authorize multiple units.
Exclusive license: refers to that the licensor allows the licensee to exclusively exploit its patent within a predetermined scope, and no longer permits any third party to use the patent within this scope, but the licensor still reserves the right to exploit the patent within this scope. In this way, only the patentee and the licensee have the right to exploit the patent.
Exclusive license: In this way, only the licensee has the right to exploit the patent, and even the patentee cannot exploit the patent.
Through the above three ways, a variety of ways can be derived, which can be determined according to the actual situation.