Code of Federal Regulations Title 37. Patents, Trademarks, and Copyrights § 37.42.220 Patent owner response

(a) Scope. A patent owner may file a single response to the petition and/or decision on institution. A patent owner response is filed as an opposition and is subject to the page limits provided in § 42.24.

(b) Due date for response. If no date for filing a patent owner response to a petition is provided in a Board order, the default date for filing a patent owner response is three months from the date the post-grant review is instituted.