Actively modify and correct the patent application documents.

The active revision and correction of patent application documents is also a procedure that applicants can choose according to their needs. The Patent Law stipulates that an applicant may modify his application documents, but the modification of the application documents for patents for inventions and utility models shall not exceed the scope recorded in the original specifications and claims, and the modification of the application documents for patents for designs shall not exceed the scope indicated in the original pictures or photographs. Active modification and correction of patent application documents According to the detailed rules for the implementation of the Patent Law, an applicant for a patent for invention is only allowed to actively modify the application documents for a patent for invention within three months from the date of filing a request for substantive examination and receiving the notice from the Patent Office that the application for a patent for invention has entered the substantive examination stage. Where the applicant modifies the patent application documents after receiving the notice of examination opinions issued by the Patent Office, it shall make the modification according to the requirements of the notice. The applicant for a patent for utility model or design is only allowed to make amendments to the application for a patent for utility model or design within two months from the date of application. The Patent Office may correct obvious errors in words and symbols in patent application documents by itself. Where the administrative department for patent in the State Council modifies it by itself, it shall notify the applicant. In the modified part of the specification or the claims of an application for a patent for invention or utility model, a replacement page shall be submitted in the prescribed format, except for individual text modification or addition or deletion. Where a picture or photograph of an application for a patent for design is modified, a replacement page shall be submitted in accordance with the provisions.