Patent invalidation suspension

According to the judicial interpretation of the Supreme Court, the application for suspension of the trial must be filed and accepted within the defense period. However, if the invalid reason is fully established, even if the invalid request is submitted after the defense period, the court will consider suspending the trial. So this is not necessarily the case. The patent infringement lawsuits I have done in Shanghai and Hangzhou before were not invalid requests made during the defense period, but the invalid evidence was sufficient, and now they have all been suspended. It is best to submit a written application to suspend the trial.