Second, in the process of replying to the review opinions, it may involve the revision of the application documents. At this time, the principle of "modification within the scope" should be strictly followed, that is, the content that cannot be clearly and uniquely derived from the original application document cannot be added to the new application document. "Out-of-scope modification" is the reason for rejection in the process of patent examination and the invalid reason after patent authorization;
Three, in the process of defending the examination opinions of the invention patent, the most common and difficult question is about the novelty and creativity of the patent. Generally speaking, "novelty" means that the application is substantially different from the existing technology; "Creativity" means that compared with the existing technology, this application is not only different in essence, but also difficult for ordinary technicians to think of, that is, it needs to reach a certain level of innovation.
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