What are the responsibilities of parties regarding litigation in inter partes reexamination?

In inter partes reexamination proceedings, both the patent owner and the third-party requester have responsibilities regarding litigation. The MPEP states: The patent owner is reminded of the continuing responsibility under 37 CFR 1.985(a), to apprise the Office of any litigation activity, or other prior or concurrent proceeding, involving Patent 9,999,999 throughout the course of this…

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