After a district court in the Eastern District of Virginia invalidated the patent-in-suit because it did “not pass the two part test laid out by the Supreme Court in Mayo and Alice.” Peschke Map Techs. LLC v. Rouse Properties Inc., No. 1:15-cv-1365, — F. Supp. 3d —-, 2016 WL 1031295, at *7 (E.D. Va. Mar. 8, 2016), the plaintiff moved to dismiss a patent infringement action pending in a different district while a motion for judgment on the pleadings was pending.
The defendant had moved for judgment on the pleadings in its favor, arguing it cannot infringe on an invalid patent and that plaintiff is collaterally estopped from continuing to pursue its infringement claim. As noted by the district court, it is well known that a patentee is estopped from pursuing infringement claims for a patent that has been invalidated by another federal court, even if that action involved a different defendant. See Blonder-Tongue Labs., Inc. v. Univ. of Illinois Found., 402 U.S. 313, 333 (1971).
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