In Sony Corporation v. Yissium Research Development Company of the Hebrew University of Jerusalem, IPR2013-00218, Paper 35 (April 7, 2014) and IPR2013-00219, Paper 41 (April 7, 2014), the patent owner sought an early ruling whether the petitioner;s response and expert declaration should be excluded for improperly raising new issues. The Board did not want to engage on the matter, however, noting that a ruling on the evidentiary objection at this stage is premature. Whether a reply contains arguments or evidence that is outside the scope of a proper reply under 37 C.F.R. § 42.23(b), is left to theultimate determination of the Board,, which it will address in final written decision.