Domestic and foreign products are similar, how to counterclaim appearance infringement?

1. First of all, the infringement of appearance patent can be protected by mediation, applying to the patent administration for mediation, and suing the court.

2. Secondly, counterclaims need to be put forward in writing in the course of litigation, and evidence should be collected first.

3. Finally, collect and provide evidence according to the litigation request, and you can call or interview.