Legal Opinion
Arcelormittal France v. Ak Steel Corporation
Court of Appeals for the Federal Circuit
Decided May 12, 2015No. 2014-1189, 2014-1190, 2014-1191PublishedCited by 19 opinions
1Opinion of the Court
HUGHES, Circuit Judge.
ArcelorMittal appeals from the decisions of the United States District Court for the District of Delaware granting summary judgment that U.S. Patent No. RE44,153E (the RE153 patent) is invalid because certain claims were broadened after two years of issuance in violation of 35 U.S.C. § 251. 1 Because the district court was bound by our construction of the original claims and the reissue claims broadened that construction, we affirm the district court’s finding that claims 1 through 23 of the RE153 patent are invalid under § 251. However, because newly added claims 24 and…
2Cases cited18 opinions
- Christianson v. Colt Industries Operating Corp.Supreme Court of the United States · 1988
- Teva Pharm. United States, Inc. v. Sandoz, Inc.Supreme Court of the United States · 2015
- Briggs v. Pennsylvania RailroadSupreme Court of the United States · 1948
- E.I. Du Pont De Nemours & Company v. Phillips Petroleum Company, Phillips 66 Company, and Phillips Driscopipe, Inc., Defendants-Cross-AppellantsCourt of Appeals for the Federal Circuit · 1988
- Banks v. United StatesCourt of Appeals for the Federal Circuit · 2014
13 more not listed; retrieve them via the Exa API.
3Cited by19 opinions
- Arcelormittal v. Ak Steel CorporationCourt of Appeals for the Federal Circuit · 2017
- ArcelorMittal Atlantique Et Lorraine v. AK Steel Corp.Court of Appeals for the Federal Circuit · 2018
- ArcelorMittal France v. AK Steel Corp.District Court, D. Delaware · 2015
- Sisvel International S.A. v. Sierra Wireless, Inc.Court of Appeals for the Federal Circuit · 2023
- CS Wind Vietnam Co. v. United StatesUnited States Court of International Trade · 2017
14 more not listed; retrieve them via the Exa API.