What do you mean by license income?

In layman's terms, if others want to use the patent, they need to pay the fees agreed by both parties. License income refers to: license income, which can be understood as "franchise fee". Patent licensing income refers to the income obtained by the patentee from licensing others to exploit his patent within a certain period and scope. The implementation of a patent must obtain the consent of the patentee and pay a certain fee to the patentee.