How long does it take for the patent rejection review?

The time limit for patent rejection and reexamination is three months. If the applicant for a patent refuses to accept China National Intellectual Property Administration's decision to reject the application, he may, within three months from the date of receiving the notice, request the Patent Reexamination Board for reexamination. If the patent office reexamines, it usually files a patent application. The reexamination is within three months, and they organize a committee to examine it, so the whole time needs to be determined according to the efficiency of the other party.