1, chemical products. Include compounds, compositions and chemical products described by appropriate chemical and physical parameters and/or preparation methods. For example, a Chinese medicinal composition for treating diabetes, an antioxidant peptide obtained by enzymolysis from peas, a gene with a certain function or protein.
2. Preparation methods of chemical products, such as preparation of traditional Chinese medicine composition for treating diabetes; A method for preparing antioxidant peptides from pea by enzymolysis, and a method for preparing genes or protein with certain functions.
3. Invention of chemical products. An application for a patent for the medical use of chemistry with the claims of "used for treating diseases", "used for diagnosing diseases" and "used as medicines" belongs to Item (3) of Paragraph 1 of Article 25 of the Patent Law, and no patent right can be granted. However, since drugs and their preparation methods can be patented according to law, pharmaceutical inventions with drug claims or use claims, such as "application in pharmacy" and "application in preparing drugs for treating certain diseases", such as the application of compound X in preparing drugs for treating Y diseases, the application of gene A in preparing diagnostic kits for B diseases and the application of protein C in preparing drugs for treating D diseases, can all be patented.
As the medical field also involves biomaterials, you can also apply for inventions with the theme of genes, vectors, recombinant vectors, transformants, polypeptides or protein, fusion cells and monoclonal antibodies, and the claims can include the products themselves, preparation methods and uses of the above themes. If the application for protection is related to the diagnosis and treatment of diseases, it should be written as "application in pharmacy" and "application in preparing drugs for treating certain diseases".