Reissue applications are used to correct errors in already issued patents. According to MPEP 201: ‘An application for reissue is made by the patentee when the patent is, through error without any deceptive intention, deemed wholly or partly inoperative or invalid, by reason of a defective specification or drawing, or by reason of the patentee…

A reissue application is a type of patent application used to correct errors in an already issued patent. According to MPEP 201: “An application for reissue of a patent is an application for a new patent to correct an error in an existing patent.” Reissue applications are filed when the original patent is wholly or…