The patent pending collegial panel means that the Patent Office has received the reexamination request submitted by the reexamination requester, but has not established a collegial panel (an examination panel composed of three examiners) to review the rejected application. Conduct review. From the submission of a review request to the establishment of a collegial panel, this process may take approximately 1 to 1.5 years, or even longer. Relatively speaking, this process is relatively long.