If someone sues the court that you have violated his patent, you will receive a copy of your complaint from the court. And the defendant should submit a petition within 15 days. What the defendant should do during these time are followings:
1. Employ patent attorneys and patent attorneys to understand the plaintiff's patent documents and understand the situation immediately.
2. Collect and prepare the documents cooperate with the patent agent, reply to the Patent Office of the patent period after 15 days will be invalid request.
3. Research the evidence material from plaintiff and collect evidence against the plaintiff. Write petition with the patent agent, on the one hand, provide evidence of invalidation of the patent, requiring the court to suspend litigation according to law; on the other hand, defense or counter claim according to the plaintiff's claim and theoretical proof.
In general, the 15-day reply period patent makes an invalid request, the court will suspend, waiting for the patent office's decision to invalidate the request. From then, on the one hand, views expressed by the patent agents will complete the entire invalid project, on the other hand, the plaintiff's claim and evidence of the study, further evidence, waiting to decide after the court hearing is invalid.