China units (including foreign-funded enterprises) or individuals applying for patents for inventions made in China shall meet the following three conditions: first, apply for patents in China National Intellectual Property Administration, China, or submit an international application to China National Intellectual Property Administration or the International Bureau of the World Intellectual Property Organization to designate China; The second is to entrust foreign-related institutions; Third, if an invention involves national security or vital interests and needs to be kept confidential, it cannot apply for a patent from a foreign country, but only from China.