Legal Opinion
Preemption Devices, Inc. v. Minnesota Mining and Manufacturing Company
Court of Appeals for the Federal Circuit
Decided April 12, 1984No. Appeal 83-1082PublishedCited by 33 opinions
1Opinion of the Court
RICH, Circuit Judge.
This appeal is from the March 18, 1983, judgment order (amended April 25,1983) of the District Court for the Eastern District of Pennsylvania (Judge James T. Giles), 559 F.Supp. 1250, after a bench trial in a declaratory judgment action brought by appellant to declare invalid the William H. Long Reissue Patent No. 28,100 for “Traffic Signal Remote Control System” owned by appellee, Minnesota Mining and Manufacturing Company (3M), which counterclaimed for infringement of the patent. Appellant, Preemption Devices, Inc. (PDI), admitted that it “willfully and intentionally”…
2Cases cited4 opinions
- Graham v. John Deere Co. of Kansas CitySupreme Court of the United States · 1966
- Zenith Radio Corp. v. Hazeltine Research, Inc.Supreme Court of the United States · 1969
- Jerry F. Connell, Gary F. Burns and Conelco, Inc., Appellants/cross-Appellees v. Sears, Roebuck & Co., a Corporation, Appellee/cross-AppellantCourt of Appeals for the Federal Circuit · 1983
- Preemption Devices, Inc. v. Minnesota Mining & Manufacturing Co.District Court, E.D. Pennsylvania · 1983
3Cited by33 opinions
- Linda Jasperson, Appellant/cross-Appellee v. Purolator Courier Corp., Appellee/cross-AppellantCourt of Appeals for the Eighth Circuit · 1985
- Symbol Technologies, Inc. v. Opticon, Inc., and Opto ElectronicsCourt of Appeals for the Federal Circuit · 1991
- Preemption Devices, Inc. v. Minnesota Mining & Manufacturing CompanyCourt of Appeals for the Federal Circuit · 1986
- John J. Borough v. Duluth, Missabe & Iron Range Railway Company, a CorporationCourt of Appeals for the Eighth Circuit · 1985
- Paperless Accounting, Inc. v. Bay Area Rapid Transit SystemCourt of Appeals for the Federal Circuit · 1986
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