U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 37Chapter IPart 42Subpart C - Subpart C—Post-Grant Review

GENERAL
§ 42.200 - Procedure; pendency.
§ 42.201 - Who may petition for a post-grant review.
§ 42.202 - Time for filing.
§ 42.203 - Post-grant review fee.
§ 42.204 - Content of petition.
§ 42.205 - Service of petition.
§ 42.206 - Filing date.
§ 42.207 - Preliminary response to petition.

INSTITUTING POST-GRANT REVIEW
§ 42.208 - Institution of post-grant review.

AFTER INSTITUTION OF POST-GRANT REVIEW
§ 42.220 - Patent owner response.
§ 42.221 - Amendment of the patent.
§ 42.222 -
§ 42.223 - Filing of supplemental information.
§ 42.224 - Discovery.
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