TREA

Stephen R. Kuhn

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  • Richton Park, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electrically operated railroad switch machine
    • Patent number 6,568,641
    • Issue date May 27, 2003
    • Meridian Rail Information Systems Corp.
    • Ray Hoyer
    • B61 - RAILWAYS
  • Information Patent Grant

    Electrically operated railroad switch machine
    • Patent number 6,427,950
    • Issue date Aug 6, 2002
    • Meridian Rail Information Systems Corp.
    • Ray Hoyer
    • B61 - RAILWAYS
  • Information Patent Grant

    Railroad spring wing frog with hold-open and shock dampening elements
    • Patent number 6,286,791
    • Issue date Sep 11, 2001
    • ABC-Naco Inc.
    • Keith Young
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Railroad spring wing frog assembly
    • Patent number 6,276,642
    • Issue date Aug 21, 2001
    • ABC-Naco Inc.
    • Keith Young
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Railroad spring frog assembly
    • Patent number 6,224,023
    • Issue date May 1, 2001
    • ABC Rail Products Corporation
    • Keith Young
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Railroad frog assembly with multi-position holdback
    • Patent number 6,164,602
    • Issue date Dec 26, 2000
    • ABC Rail Products Corporation
    • Stephen R. Kuhn
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Railroad frog assembly with latch holdback
    • Patent number 6,158,697
    • Issue date Dec 12, 2000
    • ABC Rail Products Corporation
    • Keith Young
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Railroad trackwork intersections
    • Patent number 5,845,881
    • Issue date Dec 8, 1998
    • ABC Rail Products Corporation
    • Keith Young
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Railroad spring frog assembly
    • Patent number 5,810,298
    • Issue date Sep 22, 1998
    • ABC Rail Products Corporation
    • Keith Young
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Spring rail frog having switchable magnet for holding wing rail open
    • Patent number 5,806,810
    • Issue date Sep 15, 1998
    • ABC Rail Products Corporation
    • Kieth Young
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Direct support frog assembly
    • Patent number 5,653,408
    • Issue date Aug 5, 1997
    • ABC Rail Products Corporation
    • Stephen R. Kuhn
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Pseudo heavy point frog assembly
    • Patent number 5,598,993
    • Issue date Feb 4, 1997
    • ABC Rail Products Corporation
    • Stephen R. Kuhn
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Wing rail hold-down
    • Patent number 5,595,361
    • Issue date Jan 21, 1997
    • ABC Rail Products Corporation
    • James A. Remington
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Railroad spring frog
    • Patent number 5,544,848
    • Issue date Aug 13, 1996
    • ABC Rail Products Corporation
    • Stephen R. Kuhn
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Direct support frog assembly
    • Patent number 5,496,004
    • Issue date Mar 5, 1996
    • ABC Rail Products Corporation
    • Stephen R. Kuhn
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Railroad switch stand with foot operated handle latch
    • Patent number 5,494,243
    • Issue date Feb 27, 1996
    • ABC Rail Products Corporation
    • Stephen R. Kuhn
    • B61 - RAILWAYS
  • Information Patent Grant

    Railroad frog
    • Patent number 5,312,075
    • Issue date May 17, 1994
    • ABC Rail Corporation
    • Stephen R. Kuhn
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents