Do you need an oral examination when you re-examine the patent? How to prepare for the oral exam?

Do you need an oral examination when you re-examine the patent? How to prepare for the oral exam? The Patent Reexamination Board accepts and examines the request for reexamination and makes a decision. The time required for reexamination must be submitted to the Patent Reexamination Board of the State Intellectual Property Office within 3 months after receiving the notice of rejection. Is it necessary to conduct oral examination when applying for patent reexamination? What time? . Oral hearing is an oral hearing, which is the main way to examine the request for invalidation in the collegial review stage. When patent reexamination is needed, there are two ways to start oral hearing in the collegiate bench examination stage. In addition to the collegial panel's discretion to conduct oral hearing, the parties may also submit a written request for oral hearing to the Patent Reexamination Board. The reasons for allowing them to make oral hearing requests are: (1) to ask for face-to-face cross-examination and debate with the other party; (2) It is necessary to explain the facts to the collegial panel; (iii) Need for physical demonstration; (4) It is necessary to ask the witnesses who have testified to make a notice not to panic and forget to bring them, and for the above reasons, they are still busy looking for the oral trial office before the trial. Before the trial, their fighting capacity has been removed by half in the panic. Fortunately, the patentee did not appear in court and conducted an oral hearing in absentia. Of course, after the interview, I rummaged through my mobile phone and remembered that I had taken a photo of the interview notice, but I forgot it in my panic. During the oral examination, we should avoid nervousness. Because we are not prepared, we just read out the original invalid request according to it, and finally we can't resist the examiner's questions. When considering this invalid case before, I thought it was too simple and easy, and I felt that the reexamination board would definitely support my claim because our evidence was already very strong. So I was careless and didn't analyze the difference between evidence and invalid patent. Due to the lack of attention to the above differences, there are deviations in the application of laws to support our claims, and at the same time, we have not carefully studied the invalid review rules related to the Review Guide, which review rules are applicable to which situation, which is relatively fixed. Even simple cases can't stand careful scrutiny.