(2) The defense is the legal right given to the parties by the patent law, and it is also the only way for the parties to refute each other's views to the Patent Reexamination Board;
(3) The Patent Reexamination Board conducts written and oral hearings on all cases. Failure to reply will undoubtedly increase the success rate of the other party's invalidation, and reply will undoubtedly increase our success rate.