Obligations of patentee

According to Patent Law, the patentee shall fulfill the following obligations: (1) the obligation of use of a patent; (2) the obligation to pay an annual fee; (3) The entity that is granted a patent right shall reward to the inventor or creator of a service invention-creation and, upon exploitation of the patented invention-creation, shall give the inventor or creator a reasonable remuneration based on the extent the invention-creation is applied and the economic benefits it yields.