Legal Opinion

Potter Instrument Company, Inc. v. Storage Technology Corporation Telex Computer Products, Inc. Sperry Corporation Control Data Corporation

Court of Appeals for the Fourth Circuit

Decided February 23, 1981No. 80-1428PublishedCited by 16 opinions

1Opinion of the Court

HAYNSWORTH, Chief Judge:

Potter Instrument Co., Inc. filed in the district court separate suits against Storage Technology Corp., Control Data Corp., Sperry Corp., and Telex Computer Products, Inc., alleging infringement of two patents. Potter requested monetary, but not injunctive relief. The actions were consolidated for trial and the district court granted defendants’ motions to dismiss on the grounds of equitable estoppel and laches.

This court has on occasion addressed the equitable doctrines of laches and estoppel in patent infringement suits. See Eastern Venetian Blind Co. v. Acme Steel…

2Cases cited8 opinions

  1. Studiengesellschaft Kohle Mbh, as Trustee for the Max-Planck-Institut Fur Kohlenforschung v. Eastman Kodak CompanyCourt of Appeals for the Fifth Circuit · 1980
  2. Twm Manufacturing Co., Inc. And Turner Quick Lift v. Dura CorporationCourt of Appeals for the Sixth Circuit · 1979
  3. Baker-Cammack Hosiery Mills, Inc. v. Davis Co.Court of Appeals for the Fourth Circuit · 1950
  4. Hartford-Empire Co. v. Swindell Bros.Court of Appeals for the Fourth Circuit · 1938
  5. Denominational Envelope Co. v. Duplex Envelope Co.Court of Appeals for the Fourth Circuit · 1935

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3Cited by16 opinions

  1. A.C. Aukerman Company v. R.L. Chaides Construction Co.Court of Appeals for the Federal Circuit · 1992
  2. Lyons Partnership, L.P., a Texas Limited Partnership v. Morris Costumes, Incorporated Philip Morris Amy Morris SmithCourt of Appeals for the Fourth Circuit · 2001
  3. Lemelson v. Carolina Enterprises, Inc.District Court, S.D. New York · 1982
  4. Rambus, Inc. v. Infineon Technologies AGDistrict Court, E.D. Virginia · 2001
  5. Rambus, Inc. v. Infineon Technologies AGDistrict Court, E.D. Virginia · 2001

11 more not listed; retrieve them via the Exa API.

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