Is there a time limit for applying for a patent?

The time limit for applying for a patent for invention is as follows: within six months before the date of application, if the contents are not disclosed by others or exhibited for the first time at an international exhibition sponsored or recognized by the China Municipal Government without the consent of the applicant, the invention-creation for which the patent is applied has lost its novelty.

legal ground

Article 24 of the Patent Law, which came into effect on 202 1 June1day.

An invention-creation applying for a patent shall not lose its novelty in any of the following circumstances within six months before the date of filing:

(a) When the country is in a state of emergency or an extraordinary situation, it shall be published for the first time for the purpose of public interest;

(2) It was exhibited for the first time at an international exhibition sponsored or recognized by the China Municipal Government;

(3) It was first published at a specific academic conference or technical conference;

(4) Others disclose the contents of the application without the consent of the applicant.