The first feature of a patent application is novelty: it means that there is no identical invention or utility model before the patent application date, and it has not been publicly published in domestic and foreign publications. This is the first standard, and the second standard refers to that it has not been publicly used in China or known to the public in other ways. Satisfying these two conditions is in line with the novelty of invention and creation. According to this principle, judging an invention or utility model depends entirely on the objective standards of the existing technology. Judging the existing technology is the premise of judging novelty. Existing technology refers to the technology known to the public at home and abroad before the filing date.
If the invention has been published before the date of patent application, or has been recorded and published in writing, it will lose its novelty. Some people publish papers or apply for results first, and then apply for patents, which leads to the publication of papers destroying the novelty of their inventions and creations and not granting patents.