Versata Software, Inc. v. Callidus Software, Inc.
United States Court of Appeals for the Federal Circuit
771 F.3d 1368 (2014)
Versata Software (plaintiff) sued Callidus Software (defendant) alleging infringement of three patents; Callidus counterclaimed on three of its own patents and filed Patent Office petitions challenging all claims of one Versata patent and a subset of claims from the other two, while simultaneously seeking a stay of the entire district court proceeding. The trial court granted a stay only as to the fully-challenged patent, denying it for the other two, applying the statutory four-factor test and finding every factor weighed against a stay on those patents; Callidus took an interlocutory appeal of the partial denial.
Whether district courts should decline to stay a patent-infringement case only in a relatively narrow set of circumstances.