TREA

Douglas R. Kralik

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  • Rolla, MO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Football and lacing for footballs
    • Patent number 4,869,504
    • Issue date Sep 26, 1989
    • Figgie International Inc.
    • Douglas R. Kralik
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Inflatable padded game ball
    • Patent number 4,660,831
    • Issue date Apr 28, 1987
    • Figgie International Inc.
    • Douglas R. Kralik
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Suspension system for headgear
    • Patent number 4,423,524
    • Issue date Jan 3, 1984
    • A-T-O Inc.
    • Douglas R. Kralik
    • A42 - HEADWEAR
  • Information Patent Grant

    Suspension system for headgear
    • Patent number 4,407,021
    • Issue date Oct 4, 1983
    • Figgie International Inc.
    • Douglas R. Kralik
    • A42 - HEADWEAR