- Re-examination
- Reissue
- Certificate of correction
- Disclaimer
- Special petition to waive the rules
Reissueis a process for correcting a defective patent. A request to reissue a patent, unlike a request for reexamination, can only be filed by the applicant or the assignee.
Acertificate of correctioncan be issued to correct clerical errors.
Adisclaimeris a complete forfeiture of one or more claims or a portion of a patent term.
A patentee may file aspecial petitionto have the commissioner waive the rules. This technique is rarely used.