Legal analysis: steps of applying for drug patent: 1, patent application; 2. Acceptance; 3. First instance; 4. announcement; 5, substantive review request; 6. Substantive review; 7. authorization.
Legal basis: Article 26 of the Patent Law of People's Republic of China (PRC), when applying for a patent for invention or utility model, a request, specification, abstract, patent right and other documents shall be submitted.