Legal Opinion
Abbott Laboratories and Mitsubishi-Tokyo Pharmaceuticals, Inc. (Formerly Known as Tokyo Tanabe Co., Ltd.) v. Dey, L.P. And Dey, Inc.
Court of Appeals for the Federal Circuit
Decided June 14, 2002No. 01-1374PublishedCited by 41 opinions
1Opinion of the Court
PROST, Circuit Judge.
Plaintiffs Mitsubishi-Tokyo Pharmaceuticals, Inc. and Abbott Laboratories appeal the decision of the United States District Court for the Northern District of Illinois granting defendants Dey L.P. and Dey, Inc. summary judgment of noninfringement of U.S. Patent No. 4,897,839 (“the '839 patent”). Because the district court improperly precluded plaintiffs from relying on the doctrine of equivalents to prove infringement, we vacate the judgment of noninfringement and remand for further proceedings in accordance with this opinion.
BACKGROUND
I
Tokyo Tanabe Company, Ltd., now…
2Cases cited13 opinions
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- Athletic Alternatives, Inc. v. Prince Manufacturing, Inc.Court of Appeals for the Federal Circuit · 1996
- Wilson Sporting Goods Co. v. David Geoffrey & Associates D/B/A Slazenger, and Dunlop Slazenger Corporation AKA Dunlop Sports CorporationCourt of Appeals for the Federal Circuit · 1990
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3Cited by41 opinions
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