Opinion ID: 3066527
Heading Depth: 3
Heading Rank: 2

Heading: Insituform I

Text: On appeal, we ruled that claim 1 of the ‘012 patent, which recites use of a single cup moved to different windows along the tube to draw a vacuum, did not encompass the accused methods of using several cups or several needles attached at different points along the tube, and thus was not literally infringed by either Process 1 or Process 2. Insituform Techs., Inc. v. Cat Contracting, Inc., 99 F.3d 1098, 1106-07 (Fed. Cir. 1996) (“Insituform I”). We also ruled that plaintiffs were not barred by prosecution history estoppel from asserting infringement under the doctrine of equivalents. Id. at 1107-08. Finally, we ruled that the district court had erred in construing claim 1. We therefore vacated the judgment of infringement with respect to both processes under the doctrine of equivalents and remanded the case for new findings regarding infringement under the doctrine of equivalents under the correct claim construction. Id. Because we vacated the judgment of direct infringement, we did not reach the issue of whether KS had induced infringement of the ‘012 patent.