Does the inventor need to go to the scene to defend the invention patent?

In the process of patent examination, "defense" generally refers to the process of replying to the examination opinions put forward by the examiner in the process of substantive examination of invention patents. In this process, all questions raised in the notice of examination opinions are answered one by one in written form (note that the answers should be based on the contents of the Patent Law and its implementing rules, and there can be no excuses without legal basis). When necessary, the application documents shall be amended, but the scope of the amendment must comply with the provisions of Article 33 of the Patent Law. If the examiner accepts your reply, the patent will have a chance to be authorized. If not, it may send you the next review opinion again, or directly issue a "rejection notice". In this case, if you want to continue to fight for authorization, you can only fight for authorization by submitting a "review request". This process is not used much. Please ask questions when you meet, hehe. The process of defense is a legal procedure, just like the process of defense by judges and lawyers in the court trial. Examiners are equivalent to judges, and defenders (patent agents) are equivalent to lawyers. Because you have to answer according to the patent law and its detailed rules for implementation, you'd better find a patent agent to help you, so the chances of winning the case will be greater.