What are the patent defense skills?

What are the patent defense skills? Do you have patent defense skills? We know that there are three kinds of patents in China, including invention patents, utility model patents and design patents; Because there are different patent application processes according to different types of patents, the patent application process is roughly as follows: application, acceptance, preliminary examination, substantive examination, authorization and authentication; Among them, patent defense is mainly in two links: preliminary examination and substantive examination. Patent defense skills What utility model patents and design patents have no substantive examination, so there is only one patent defense; There are often some problems in patent defense, such as enlightenment and easy thinking, which are commonly used in invalidation. In fact, it is obvious in the exam guide. Although the review guide gives obvious identification methods, it will make the defense easier if you can draw the following two points according to the comparison: 1, and the prior technical scheme draws the opposite conclusion; 2. The existing technical scheme may not necessarily lead to the technical scheme of this patent, and there are many technical schemes given, which solve different problems and have different technical effects. Under the demonstration of the existing technology, it is concluded that the technical scheme described in the patent does not need creative labor, or there is no substantive difference, so it is not creative. The most important thing is to find out the distinguishing feature and see if this distinguishing feature gives some enlightenment in the existing technology. If you can explain that the enlightenment (express or implied) given by the existing technology does not indicate the technical scheme of this patent, or it is impossible to get the technical scheme of this patent necessarily, or creative labor is needed to get the technical scheme of this patent. This question is clear. Familiarity with patent law is the most important thing in defense. Patent defense should go in the direction of patent law, not other answers unrelated to patent law. Therefore, if you are not familiar with the patent law, it is recommended that the patentee handle it through a patent agency and be done by professionals; Of course, the patentee should also attach importance to patent defense. If the patent defense cannot be defended within the specified time, it shall be rejected directly. Opportunity knocks but once.