37 C.F.R. § 41.122 Oppositions and replies.
Title 37 - Patents, Trademarks, and Copyrights
(a) Oppositions and replies must comply with the content requirements for motions and must include a statement identifying material facts in dispute. Any material fact not specifically denied shall be considered admitted. (b) All arguments for the relief requested in a motion must be made in the motion. A reply may only respond to arguments raised in the corresponding opposition.
Title 37: Patents, Trademarks, and Copyrights
PART 41—PRACTICE BEFORE THE BOARD OF PATENT APPEALS AND INTERFERENCES
Subpart D—Contested Cases
§ 41.122 Oppositions and replies.

