(a) In an ex parte reexamination proceeding before the Office, the patent owner must inform the Office of any prior or concurrent proceedings in which the patent is or was involved such as interferences, reissues, ex parte reexaminations, inter partes reexaminations, or litigation and the results of such proceedings. See § 1.985 for notification of prior or concurrent proceedings in an inter partes reexamination proceeding.

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Thus, for example, if the patent owner properly files in a reexamination proceeding, pursuant to 37 CFR 1.565(a), an enterable paper from the discovery stage of litigation of the patent being reexamined, the paper would be entered into the reexamination file and considered by the examiner, the next time the proceeding comes up for action on the merits.