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MEDTRONIC, INC. v. CARDIAC PACEMAKERS, INC.

Appeal No. 83-820.

721 F.2d 1563 (1983)

MEDTRONIC, INC., and Med-Rel, Inc., Appellants, v. CARDIAC PACEMAKERS, INC., Appellee.

United States Court of Appeals, Federal Circuit.

November 23, 1983.

Attorney(s) appearing for the Case

John D. Gould, of Minneapolis, Minnesota, argued for appellants; with him on brief were Douglas A. Strawbridge and Robert C. Beck, Minneapolis, Minn.

Timothy J. Malloy, Chicago, Ill., argued for appellee; with him on brief were Bradley J. Hulbert, Chicago, Ill., and Orrin M. Haugen, Minneapolis, Minn.

Before MARKEY, Chief Judge, BENNETT, Circuit Judge, and COWEN, Senior Circuit Judge.

MARKEY, Chief Judge.

Appeal from a judgment of the District Court of Minnesota holding U.S. Patents 3,391,697 (Greatbatch), 3,833,005 (Wingrove) and 3,901,247 (Walmsley) invalid, and finding no infringement. We modify and affirm.

Background

Medtronic, Inc. and Med-Rel, Inc. (Medtronic) own the asserted patents directed to implantable cardiac pacemakers. Great-batch describes and claims a pacemaker which is "runaway inhibited...

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