Patent right is an exclusive right. No unit or individual may use the patent for the purpose of production and operation without the permission of the patentee. However, it is an important right of the patentee to license others to exploit its patent; the patentee also has the right to license others to exploit its patent and obtain corresponding remuneration. Article 12 of my country’s Patent Law stipulates patent licensing, “Any unit or individual that exploits another’s patent shall enter into a written license contract with the patentee and pay patent royalties to the patentee. The licensee has no right Any unit or individual other than those stipulated in the contract is allowed to exploit the patent. "In general, a patent implementation license must comply with the following principles: (1) A patent implementation license is the transfer of the right to use the patent.