According to Article 8 of the Patent Law, "unless otherwise agreed, the right to apply for a patent belongs to the invention-creation jointly completed by two or more units or individuals, or the invention-creation entrusted by other units or individuals; After the application is approved, the unit or individual applying for it is 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 a patent.
legal ground
Article 8 of the Patent Law of People's Republic of China (PRC) * * * An invention-creation completed by two or more units or individuals in cooperation, or an invention-creation entrusted by one unit or individual to another unit or individual, unless otherwise agreed, the right to apply for a patent belongs to the unit or individual that completed it or jointly completed it; After the application is approved, the applicant unit or individual shall be the patentee.