Without losing the freshness.

Legal analysis: The cases without losing novelty are: (1) exhibited for the first time in an international exhibition sponsored or recognized by the China government; (2) It was first published at a specific academic conference or technical conference; (3) Others disclose the contents of the application without the consent of the applicant. Generally speaking, patented inventions can only be implemented by others with the permission of the patentee. The invention or utility model for which a patent is applied must meet the standards of novelty, must be different from the existing technology, and there shall be no conflicting applications.

Legal basis: Article 22 of the Patent Law of People's Republic of China (PRC), the invention and utility model for which a patent is applied shall be novel, creative and practical. Novelty means that the invention or utility model does not belong to the prior art; No unit or individual filed an application for the same invention or utility model with the administrative department for patent in the State Council before the filing date, and it was recorded in the patent application documents published or announced after the filing date. Creativity means that compared with the prior art, the invention has outstanding substantive features and remarkable progress, and the utility model has substantive features and progress. Practicality means that the invention or utility model can be manufactured or used and can produce positive effects. The existing technology mentioned in this law refers to the technology known to the public at home and abroad before the date of application.