Legal analysis: The product can generally be identified based on the patent number. The patent number is the number given when the patent right is granted and is a type of document number. The document number is the patent document published by each industrial property office. Including the serial number compiled when published publicly and provided only for reading and copying. When a patent applicant files a patent application with the State Intellectual Property Office, the State Intellectual Property Office will issue a patent application acceptance notice and a patent application number. The term “existing technology” as used in this Law refers to technology that was known to the public at home and abroad before the filing date.
Legal basis: Patents granted in Article 22 of the Patent Law of the People’s Republic of China Copyrighted inventions and utility models must possess novelty, creativity and practicality. Novelty means that the invention or utility model does not belong to the existing technology; no unit or individual has applied to the patent administration department of the State Council for the same invention or utility model before the application date, and it is recorded that it was published after the application date. In patent application documents or published patent documents. Creativity means that compared with the existing technology, the invention has outstanding substantive features and significant 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 term "existing technology" as used in this Law refers to the technology that was known to the public at home and abroad before the filing date.