TREA

Richard L. Alderman

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  • Madison, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ice wheels
    • Patent number 6,578,930
    • Issue date Jun 17, 2003
    • Richard L. Alderman
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Modified wheels for ice
    • Patent number 6,322,154
    • Issue date Nov 27, 2001
    • Richard L. Alderman
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Wheels that provide lateral friction on ice
    • Patent number 5,411,320
    • Issue date May 2, 1995
    • Richard L. Alderman
    • A63 - SPORTS GAMES AMUSEMENTS