Patent licensing is divided into several situations.

Legal analysis: There are five kinds of patent licenses, namely exclusive license, general license, sub-license and cross-license.

Legal basis: People's Republic of China (PRC) Patent Law.

Article 11 After the patent right for invention and utility model is granted, except as otherwise provided in this Law, no unit or individual may exploit the patent without the permission of the patentee, that is, it may not manufacture, use, promise to sell, sell or import the patented product for production and business purposes, nor may it use the patented method and use, promise to sell, sell or import the product directly obtained according to the patented method. After the design patent is granted, no unit or individual may exploit its patent without the permission of the patentee, that is, it may not manufacture, promise to sell, sell or import its patented product for production and business purposes.

Article 12 After the patent right for invention and utility model is granted, except as otherwise provided in this Law, no unit or individual may exploit its patent without the permission of the patentee, that is, it may not manufacture, use, promise to sell, sell or import the patented product for production and business purposes, nor may it use the patented method and use, promise to sell, sell or import the product directly obtained according to the patented method. After the design patent is granted, no unit or individual may exploit its patent without the permission of the patentee, that is, it may not manufacture, promise to sell, sell or import its patented product for production and business purposes.

Article 15 Where there is an agreement on the right to apply for a patent or the exercise of the patent right, such agreement shall prevail. If there is no agreement, * * * someone can exploit the patent alone or license others to exploit it by ordinary license; Where another person is licensed to exploit the patent, the royalties collected shall be distributed among the owners. Except in the circumstances specified in the preceding paragraph, the exercise of all the patent application rights or patent rights of * * * shall be subject to the consent of the owner of * * *.