Knowledge of a person of skill in the art was recently used to revive claims that had earlier been found indefinite under 35 U.S.C. § 112.  Delaware District Court Judge Leonard P. Stark granted a motion for reargument on the issue of indefinitenes…

Here is a case illustrating the general rule that the preamble of a patent claim is rarely construed as a substantive claim limitation. In Georgetown Rail Equipment Co. v. Holland L.P.¸ No. 2016-2297 (Fed. Cir. Aug. 1, 2017), the Federal Circuit aff…

Because “a finding of direct infringement is a predicate to any finding of indirect infringement,” the Federal Circuit reversed a district court’s findings of indirect patent infringement where the evidence did not support a finding of direct i…