Legal Opinion
Pic Inc. v. Prescon Corp.
District Court, D. Delaware
Decided March 5, 1980No. Civ. A. 76-432PublishedCited by 14 opinions
1Opinion of the Court
OPINION
MURRAY M. SCHWARTZ, District Judge.
This case is an action by plaintiff PIC Incorporated (“PIC”), alleging patent infringement by defendant The Prescon Corporation (“Prescon”). PIC is the assignee of Patent No. 3,646,748 for an invention entitled “TENDONS FOR PRESTRESSED CONCRETE AND PROCESS FOR MAKING SUCH TENDONS” which was issued to Frederic A. Lang on March 7, 1972 (“the Lang patent”). Prescon denied infringement and counterclaimed against PIC and Lang for a declaratory judgment that the patent is invalid for many reasons, including the existence of prior art and fraud on the Patent…
2Cases cited23 opinions
- Parklane Hosiery Co. v. ShoreSupreme Court of the United States · 1979
- Commissioner v. SunnenSupreme Court of the United States · 1948
- Blonder-Tongue Laboratories, Inc. v. University of Illinois FoundationSupreme Court of the United States · 1971
- United States v. Utah Construction & Mining Co.Supreme Court of the United States · 1966
- Lawlor v. National Screen Service Corp.Supreme Court of the United States · 1955
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3Cited by14 opinions
- Ppg Industries, Inc. v. Celanese Polymer Specialties Co., Inc.Court of Appeals for the Federal Circuit · 1988
- In Re Lipitor Antitrust LitigationCourt of Appeals for the Third Circuit · 2017
- Rohm & Haas Co. v. Mobil Oil Corp.District Court, D. Delaware · 1981
- Johnson & Johnson, Inc. v. Wallace A. Erickson & Co.Court of Appeals for the Seventh Circuit · 1980
- Lloyd v. JeffersonDistrict Court, D. Delaware · 1999
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