# Changes To Implement the Supplemental Examination Provisions of the Leahy-Smith America Invents Act and To Revise Reexamination Fees
> **US Patent and Trademark Office** · Final rule. · Published 2012-08-14 · Effective 2012-09-16 · 77 FR 48828
## Document
- **Document number:** 2012-17917
- **Category:** uspto-patent
- **Sub-agency:** US Patent and Trademark Office
- **Federal Register citation:** 77 FR 48828
- **CFR reference:** 37 CFR 1
- **Publication date:** 2012-08-14
- **Effective date:** 2012-09-16
- **Commerce docket:** Docket No. PTO-P-2011-0075
## Abstract

The United States Patent and Trademark Office (Office) is revising the rules of practice in patent cases to implement the supplemental examination provisions of the Leahy-Smith America Invents Act (AIA). The supplemental examination provisions permit a patent owner to request supplemental examination of a patent by the Office to consider, reconsider, or correct information believed to be relevant to the patent. These provisions could assist the patent owner in addressing certain challenges to the enforceability of the patent during litigation. The Office is also adjusting the fee for filing a request for ex parte reexamination and setting a fee for petitions filed in ex parte and inter partes reexamination proceedings to more accurately reflect the cost of these processes.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/08/14/2012-17917/changes-to-implement-the-supplemental-examination-provisions-of-the-leahy-smith-america-invents-act)
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