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J. Richard Hollrock

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  • South Deerfield, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Batting system
    • Patent number 7,229,366
    • Issue date Jun 12, 2007
    • J. Richard Hollrock
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Apparatus for washing and sorting plastic balls
    • Patent number 5,647,089
    • Issue date Jul 15, 1997
    • Hollrock Engineering, Inc.
    • J. Richard Hollrock
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Device for prewashing and sorting golf balls
    • Patent number 5,609,173
    • Issue date Mar 11, 1997
    • Hollrock Engineering, Inc.
    • J. Richard Hollrock
    • B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
  • Information Patent Grant

    Golf ball handling system
    • Patent number 5,350,260
    • Issue date Sep 27, 1994
    • Hollrock Engineering, Inc.
    • Richard H. Hollrock
    • F26 - DRYING
  • Information Patent Grant

    Golf ball handling system
    • Patent number 5,332,350
    • Issue date Jul 26, 1994
    • Hollrock Engineering, Inc.
    • Richard H. Hollrock
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf ball handling system
    • Patent number 5,228,168
    • Issue date Jul 20, 1993
    • Hollrock Engineering, Inc.
    • Richard H. Hollrock
    • F26 - DRYING
  • Information Patent Grant

    Golf ball washer
    • Patent number 4,805,251
    • Issue date Feb 21, 1989
    • Hollrock Engineering, Inc.
    • J. Richard Hollrock
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Convertible truck bed for pickup
    • Patent number 4,695,087
    • Issue date Sep 22, 1987
    • Hollrock Engineering, Inc.
    • J. Richard Hollrock
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Machine for washing golf balls and the like
    • Patent number 4,181,996
    • Issue date Jan 8, 1980
    • J. Richard Hollrock
    • A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents