Legal analysis: The production method of drugs can be patented. The production method of a patented drug must be novel, creative and practical. According to the relevant laws and regulations of our country, inventions and utility models for which patent rights are granted 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.
Legal basis: Article 22 of the Patent Law of the People's Republic of China. Inventions and utility models for which patent rights are granted shall 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.