Item A, compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, which is the requirement of invention creativity rather than novelty. Item b, the examination of the invention patent documents and the modification of the patent application documents shall not exceed the scope recorded in the original specification and claims. Paragraph 4 (c) of Article 22 of the Patent Law stipulates: "Practicality means that an invention or utility model can be manufactured or used and can produce positive effects." Item d, there are two situations that do not satisfy novelty. One case is that there is the same technical solution as the claim in the prior art.. Second, whether compared with the prior art or the prior application, the comparison method is a separate comparison, that is, the scheme of the subject claim is compared with the scheme disclosed in the prior art or the prior application. Article 22, paragraph 3 (e) of the Patent Law defines creativity as: "Creativity means that compared with the prior art, the invention has outstanding substantive features and remarkable progress, and the utility model has substantive features and progress."