Warner-Jenkinson Co. v. Hilton Davis Chemical Co.
1997 United States Supreme Court case / From Wikipedia, the free encyclopedia
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Warner-Jenkinson Company, Inc. v. Hilton Davis Chemical Co., 520 U.S. 17 (1997), was a United States Supreme Court decision in the area of patent law, affirming the continued vitality of the doctrine of equivalents while making some important refinements to the doctrine.[1]
Quick Facts Warner-Jenkinson Company, Inc. v. Hilton Davis Chemical Co., Argued October 15, 1996 Decided March 3, 1997 ...
Warner-Jenkinson Company, Inc. v. Hilton Davis Chemical Co. | |
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Argued October 15, 1996 Decided March 3, 1997 | |
Full case name | Warner-Jenkinson Company, Incorporated, et al. v. Hilton Davis Chemical Company |
Citations | 520 U.S. 17 (more) 117 S. Ct. 1040; 137 L. Ed. 2d 146; 1997 U.S. LEXIS 1476; 65 U.S.L.W. 4162; 41 U.S.P.Q.2d (BNA) 1865; 97 Cal. Daily Op. Service 1540; 97 Daily Journal DAR 2249; 10 Fla. L. Weekly Fed. S 321 |
Argument | Oral argument |
Case history | |
Prior | Hilton Davis Chem. Co. v. Warner-Jenkinson Co., 62 F.3d 1512 (Fed. Cir. 1995); cert. granted, 516 U.S. 1145 (1996). |
Holding | |
The Doctrine of Equivalents is consistent with the 1952 revisions to the Patent Act and patentees may attempt to prove that an amendment was not made to be limiting. Reversed and remanded. | |
Court membership | |
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Case opinions | |
Majority | Thomas, joined by unanimous |
Concurrence | Ginsburg, joined by Kennedy |
Laws applied | |
Patent Act of 1952 |
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