TREA

Stephen J. Havens

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  • Newport News, VA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Phenylethynyl amine
    • Patent number 5,599,993
    • Issue date Feb 4, 1997
    • The United States of America as represented by the administrator of the Natio...
    • Paul M. Hergenrother
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Phenylethynyl terminated imide oligomers
    • Patent number 5,412,066
    • Issue date May 2, 1995
    • Ther United States of America as represented by the Administrator of the Nati...
    • Paul M. Hergenrother
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polyimides with improved compression moldability
    • Patent number 5,212,276
    • Issue date May 18, 1993
    • The United States of America as represented by the administrator of the Natio...
    • Paul M. Hergenrother
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Methyl substituted polyimides containing carbonyl and ether connect...
    • Patent number 5,145,942
    • Issue date Sep 8, 1992
    • The United States of America as represented by the administrator of the Natio...
    • Paul M. Hergenrother
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polyimides with carbonyl and ether connecting groups between the ar...
    • Patent number 5,145,937
    • Issue date Sep 8, 1992
    • The United States of America as represented by the administrator of the Natio...
    • Paul M. Hergenrother
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    N-(3-ethynylphenyl)maleimide
    • Patent number 4,937,356
    • Issue date Jun 26, 1990
    • The United States of America as represented by the administrator of the Natio...
    • Paul M. Hergenrother
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for crosslinking methylene-containing aromatic polymers wit...
    • Patent number 4,910,233
    • Issue date Mar 20, 1990
    • The United States of America as represented by the administrator of the Natio...
    • Vernon L. Bell
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Acetylene terminated aspartimides and resins therefrom
    • Patent number 4,889,912
    • Issue date Dec 26, 1989
    • The United States of America as represented by the administrator of the Natio...
    • Paul M. Hergenrother
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polyimides containing carbonyl and ether connecting groups
    • Patent number 4,820,791
    • Issue date Apr 11, 1989
    • United States of America
    • Paul M. Hergenrother
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polyphenylquinoxalines containing alkylenedioxy groups
    • Patent number 4,788,271
    • Issue date Nov 29, 1988
    • The United States of America as represented by the United States National Aer...
    • Paul M. Hergenrother
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for crosslinking and extending conjugated diene-containing...
    • Patent number 4,661,558
    • Issue date Apr 28, 1987
    • The United States of America as represented by the administrator of the Natio...
    • Vernon L. Bell
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Ethynyl terminated ester oligomers and polymers therefrom
    • Patent number 4,638,083
    • Issue date Jan 20, 1987
    • The United States of America as represented by the administrator of the Natio...
    • Paul M. Hergenrother
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Ethynyl terminated ester oligomers and polymers therefrom
    • Patent number 4,567,240
    • Issue date Jan 28, 1986
    • The United States of America as represented by the administrator of the Natio...
    • Paul M. Hergenrother
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...