What is a patent defense? What is the necessity of patent defense?

What is a patent defense? What is the necessity of patent defense? When applying for a patent, the patentee must have a deep understanding of the patent application, so that he is naturally confident and has a low probability of making mistakes in the patent application process. The procedures of patent application can be roughly divided into: patent application, acceptance, examination, authorization and certification; Patent invalidation defense is one of the links, which generally appears in patent preliminary examination and patent substantive examination. Substantive examination only applies to invention patents, not to utility model patents and appearance patents. Under what circumstances do you need a patent defense? In any case, patent defense needs to comply with the defense period, and the consequences of overdue defense are the same as those of not responding. Answer the questions pointed out in the Notice of Review Opinions one by one. The reply can be supplemented or modified according to the examination opinions; If you disagree with the examiner, you should state your own views and reasons. Formal or procedural defects can generally be eliminated by correction; Obvious substantive defects are generally difficult to eliminate through correction or modification, and belong to obvious substantive defects in defense and statement. This defense usually means that there are some defects in the preliminary examination of the patent application. The invention patent can be defended twice, and the utility model can only be defended once. The modification of an application for a patent for invention or utility model shall not exceed the scope recorded in the original specification and claims, and the modification of an application for a patent for design shall not exceed the scope shown in the original picture or photograph. When submitting the revised document, a replacement page shall be attached in the prescribed format. Therefore, the main reason for the patent defense is that the patent application is flawed, and it is necessary to actively respond to the patent defense issued by the patent office. If the patent defense is not made, the patent will be directly regarded as withdrawn; The patentee should pay attention to it; If the patent itself is directly rejected by the Patent Office because of serious defects, the patentee still has the opportunity to apply for patent reexamination procedures; In short, it is very important to make a good record of the pre-patent.