What does the global patent cross-licensing agreement mean?

Patent cross-licensing, that is, equal licensing and mutual licensing, refers to a licensing contract in which two or more patentees grant each other their respective patent exploitation rights under certain conditions.

Cross-licensing is the transaction of two or more patent licenses from different objects. Generally speaking, the licensing of these patents is handled separately in separate contracts, and each contract should stipulate the implementation of the granted license. This kind of license is common among original invention-creation patentees who wish to improve their inventions.