Legal Opinion
Kalman v. Kimberly-Clark Corp.
Court of Appeals for the Federal Circuit
Decided July 19, 1983No. Appeal No. 83-540PublishedCited by 2 opinions
1Opinion of the Court
RICH, Circuit Judge.
This appeal is from the September 17, 1982, judgment of the District Court for the Eastern District of Wisconsin, sitting without a jury, holding claims 1, 3,15,18, 20, 23, and 25 of appellee Kalman’s U.S. Patent No. 3,471,017, issued October 7, 1969, entitled “Filtering Process and Apparatus,” valid and infringed by appellant Kimberly-Clark Corp. (“KC”). 561 F.Supp. 628. We affirm.
Background
1. The Invention
The Kalman patent describes and claims a process and apparatus for filtering a heat-softened substance, for example, a thermoplastic, by introducing a filter ribbon…
2Cases cited14 opinions
- Graham v. John Deere Co. of Kansas CitySupreme Court of the United States · 1966
- Boyden Power-Brake Co. v. Westinghouse Westinghouse v. Boyden Power-Brake Co.Supreme Court of the United States · 1898
- Autogiro Company of America v. The United StatesUnited States Court of Claims · 1967
- Westinghouse v. Boyden Power Brake Co.Supreme Court of the United States · 1898
- Coupe v. RoyerSupreme Court of the United States · 1895
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3Cited by2 opinions
- Herbert Markman and Positek, Inc. v. Westview Instruments, Inc. And Althon Enterprises, Inc.Court of Appeals for the Federal Circuit · 1995
- Herbert Markman and Positek, Inc. v. Westview Instruments, Inc. And Althon Enterprises, Inc.Court of Appeals for the Federal Circuit · 1995