Legal analysis: To apply for a patent, you can either go to the patent office of the State Intellectual Property Office (Beijing) or the patent agency of the State Intellectual Property Office in a provincial capital.

Legal basis: "Patent Law of the People's Republic of China" Article 6 Inventions and creations that are completed in the performance of the tasks of the unit or mainly by utilizing the material and technical conditions of the unit are service inventions. The right to apply for a patent for a service invention-creation belongs to the unit. After the application is approved, the unit becomes the patentee. The unit may dispose of the right to apply for patents and patent rights for its service-based inventions and creations in accordance with the law, and promote the implementation and application of relevant inventions and creations. For non-service inventions and creations, the right to apply for a patent belongs to the inventor or designer; after the application is approved, the inventor or designer becomes the patentee. For inventions and creations completed by utilizing the unit's material and technical conditions, if the unit has a contract with the inventor or designer and stipulates the right to apply for a patent and the ownership of the patent right, such agreement shall prevail.