Legal Opinion
Sauquoit Fibers Co. v. Leesona Corp.
Court of Appeals for the Fifth Circuit
Decided July 29, 1974No. 73-2420PublishedCited by 13 opinions
1Opinion of the Court
THORNBERRY, Circuit Judge:
The principal issue in this consolidated litigation is the validity of U.S. Patents numbered 2,803,105, 2,803,108 and 2,803,109, collectively called the *274“false twist” or “single heater” patents, which are presently owned by Leesona. The patents disclose both an apparatus and an efficient, economical means of texturizing synthetic thermoplastic yarns. The teachings of the patents laid the technological foundation for the development of double-knit fabrics. On a motion for summary judgment the district court, 360 F.Supp. 74, held the patents invalid. We find that there…
2Cases cited63 opinions
- United States v. Diebold, Inc.Supreme Court of the United States · 1962
- Poller v. Columbia Broadcasting System, Inc.Supreme Court of the United States · 1962
- Blonder-Tongue Laboratories, Inc. v. University of Illinois FoundationSupreme Court of the United States · 1971
- Elizabeth v. Pavement Co.Supreme Court of the United States · 1878
- Pennock v. DialogueSupreme Court of the United States · 1829
58 more not listed; retrieve them via the Exa API.
3Cited by13 opinions
- Water Technologies Corp. v. Calco, Ltd.Court of Appeals for the Federal Circuit · 1988
- In Re James A. Smith and James H. McLaughlin and Sterling Drug, Inc., IntervenorCourt of Appeals for the Federal Circuit · 1983
- In Re Yarn Processing Patent Validity Litigation. Sauquoit Fibers Company v. Leesona Corporation, Kayser-Roth Corporation (In Its Own Name and D/B/A Kayser-Roth Hosiery Companyand Kayser-Roth Hosiery Co., Inc.) v. Leesona Corporation, Leesona Corporation v. The Duplan CorporationCourt of Appeals for the Fifth Circuit · 1974
- General Electric Co. v. United StatesUnited States Court of Claims · 1981
- Gould Inc. v. United StatesUnited States Court of Claims · 1978
8 more not listed; retrieve them via the Exa API.