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Stephen C. Hatfield

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  • Hartford, CT, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fuel assembly and associated grid for nuclear reactor
    • Patent number 6,819,733
    • Issue date Nov 16, 2004
    • Westinghouse Electric Company LLC
    • Richard P. Broders
    • G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
  • Information Patent Grant

    Split beam laser welding apparatus
    • Patent number 5,369,242
    • Issue date Nov 29, 1994
    • Combustion Engineering, Inc.
    • Stephen C. Hatfield
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Hexagonal grid
    • Patent number 5,367,549
    • Issue date Nov 22, 1994
    • Combustion Engineering, Inc.
    • Stephen C. Hatfield
    • G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
  • Information Patent Grant

    Spacer grid retainer
    • Patent number 5,343,508
    • Issue date Aug 30, 1994
    • Combustion Engineering, Inc.
    • Stephen C. Hatfield
    • G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
  • Information Patent Grant

    Spacer grid rod support system
    • Patent number 5,331,678
    • Issue date Jul 19, 1994
    • Combustion Engineering, Inc.
    • Stephen C. Hatfield
    • G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
  • Information Patent Grant

    Split vane alternating swirl mixing grid
    • Patent number 5,307,393
    • Issue date Apr 26, 1994
    • Combustion Engineering, Inc.
    • Stephen C. Hatfield
    • G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
  • Information Patent Grant

    Fuel assembly holddown spring
    • Patent number 5,053,191
    • Issue date Oct 1, 1991
    • Combustion Engineering, Inc.
    • William J. Bryan
    • G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
  • Information Patent Grant

    Debris catching spring detent spacer grid
    • Patent number 5,024,807
    • Issue date Jun 18, 1991
    • Combustion Engineering, Inc.
    • Stephen C. Hatfield
    • G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
  • Information Patent Grant

    Split vaned nuclear fuel assembly grid
    • Patent number 4,879,090
    • Issue date Nov 7, 1989
    • Combustion Engineering, Inc.
    • Patrick A. Perrotti
    • G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
  • Information Patent Grant

    Replacement rod
    • Patent number 4,863,681
    • Issue date Sep 5, 1989
    • Combustion Engineering, Inc.
    • Stephen C. Hatfield
    • G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
  • Information Patent Grant

    Support grid with integral vanes
    • Patent number 4,844,860
    • Issue date Jul 4, 1989
    • Combustion Engineering, Inc.
    • Stephen C. Hatfield
    • G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
  • Information Patent Grant

    Spring retention cap
    • Patent number 4,792,429
    • Issue date Dec 20, 1988
    • Combustion Engineering, Inc.
    • Stephen C. Hatfield
    • G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
  • Information Patent Grant

    Support grid with integral vanes
    • Patent number 4,728,489
    • Issue date Mar 1, 1988
    • Combustion Engineering, Inc.
    • Stephen C. Hatfield
    • G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING

Patents Applicationslast 30 patents