What are the requirements for applying for a patent? What does freshness mean? How to judge

Patent application needs to meet:

(1). Novelty: It means that before the filing date, no identical invention or utility model has been published in publications at home and abroad, used in China or known to the public in other ways, and no identical invention or utility model has been applied by others to the the State Council Patent Administration Department and recorded in the patent application documents published after the filing date.

(2) Creativity: Compared with the prior art before the filing date, the utility model has substantial features and progress.

(3) Practicality: It means that the utility model can be manufactured or used and can produce positive effects.

Judgment of novelty: Paragraph 2 of Article 22 of the Patent Law stipulates: "Novelty means that no identical invention or utility model was published in domestic and foreign publications, used in China or known to the public in other ways before the filing date, and no identical invention or utility model was filed by others with the the State Council Patent Administration Department and recorded in the patent application documents published after the filing date." There are two concepts here: comparison with relevant technical data before the application date-published in domestic and foreign publications, publicly used in China or known to the public in other ways.