After the PTAB instituted a CBM review of the patents-in-suit, Google sought a stay of the litigation pending resolution of CBM review by the PTAB. The district court explained that “[c]ourts consider four factors when deciding whether to stay litigation pending CBM review: (1) whether a stay will simplify the issues, (2) whether discovery is complete and a trial date is set, (3) whether there will be undue prejudice to the non-moving party, and (4) whether a stay will reduce the burden on the Court and the parties. See AIA § 18(b)(1).”
With respect to the first factor, the district court found that some “simplification of the issues could result from cancellation of the asserted claims or, failing that, from the estoppel effects on Google arising from presenting its arguments to the PTAB in the CBM process. See AIA § 18(a)(1)(D).” But the district court also found that the “estoppel only goes so far, especially as the PTAB rejected several of the grounds for CBM review articulated by Google. Thus, unless the PTAB invalidates all of the asserted claims on a basis on which it has initiated CBM review, it is likely that the Court will have to address at least some of Google’s invalidity defenses. Therefore, while the simplification factor favors a stay, it does not do so by much.”
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