The Patent Law stipulates that if an invention-creation has been disclosed to the public within a certain period before its filing date or priority date under certain specific circumstances, it does not lose its novelty, which constitutes Exception to Novelty Condition. The exception is limited to six months before the filing date. Specific situations are limited to the following three: What are the exceptions to the novelty conditions for granting patent rights (1) First exhibited at an international exhibition. In order not to lose novelty, attention should be paid to the following two issues: first, such international exhibitions must be sponsored by or recognized by the Chinese government; second, the invention for which a patent is applied for is exhibited for the first time. (2) The content of the invention is published for the first time at an academic conference or technical conference organized by the relevant competent department of the State Council or a national academic group. The patent laws of some countries do not have such provisions, so if you apply for a patent in those countries after publishing it at a prescribed meeting, your novelty will be lost. (3) Disclosing the content of the invention without the consent of the applicant. For example, leakage in violation of the agreement, or disclosure of the content of inventions and creations at will due to work relationships, are all such situations. For inventions and creations that meet the above three exceptions, supporting documents are generally required to be submitted when applying for a patent. If before a patent application is filed, someone else has filed a patent application with the same content, and the novelty of the second patent application can be destroyed after the filing date. It should be noted that the prior patent application must be filed by someone else to be valid, and two or more identical applications filed successively by the patent applicant himself will not lose novelty.