legal ground
Article 15 of the Detailed Rules for the Implementation of the Patent Law of People's Republic of China (PRC) shall be filed in writing, and the application documents shall be submitted to the patent administration department of the State Council in duplicate. To apply for a patent in other forms prescribed by the administrative department for patent in the State Council, the prescribed conditions shall be met. Where the applicant entrusts a patent agency to apply for a patent and handle other patent affairs with the patent administration department of the State Council, it shall also submit a power of attorney, indicating the authorization authority. If there are more than two applicants who have not entrusted a patent agency, unless otherwise stipulated in the request, the first applicant specified in the request shall be the representative.