What is a reissue patent?
A reissue patent is a mechanism to correct errors in an existing patent. According to 35 U.S.C. 251, a reissue patent can be granted “Whenever any patent is, through error, deemed wholly or partly inoperative or invalid, by reason of a defective specification or drawing, or by reason of the patentee claiming more or less than he had a right to claim in the patent“.
The reissue process allows the patent owner to surrender the original patent and request a new one with corrections, provided certain conditions are met. It’s important to note that “No new matter shall be introduced into the application for reissue“.
To learn more: