Legal basis: Unless otherwise agreed, the right to apply for a patent belongs to the entity or individual that has completed the invention or creation in cooperation with two or more entities or individuals in Article 8 of the Patent Law of People's Republic of China (PRC), or the invention or creation entrusted by another entity or individual; After the application is approved, the applicant unit or individual shall be the patentee. There is no limit to the number of patent applicants, so no matter how many people can apply for a patent, so can the signature of the patent inventor.