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Christopher M. Knowlton

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  • Pinehurst, NC, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Floor scrubber dry sweep apparatus
    • Patent number 9,924,844
    • Issue date Mar 27, 2018
    • Minuteman International, Inc.
    • Barry M. Person
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    High dump floor scrubber sweeper
    • Patent number 9,649,002
    • Issue date May 16, 2017
    • Minuteman International, Inc.
    • Jeffrey W. Pollack
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Multi-function, battery-powered, rider cleaning machine
    • Patent number 6,357,070
    • Issue date Mar 19, 2002
    • Windsor Industries, Inc.
    • Daniel C. Venard
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Squeegee adjustment method and apparatus
    • Patent number 6,073,304
    • Issue date Jun 13, 2000
    • Windsor Industries, Inc.
    • Christopher M. Knowlton
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Floor cleaning apparatus with contouring broom
    • Patent number 5,881,417
    • Issue date Mar 16, 1999
    • Windsor Industries, Inc.
    • Christopher M. Knowlton
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Floor cleaning apparatus with two brooms
    • Patent number 5,802,665
    • Issue date Sep 8, 1998
    • Widsor Industries, Inc.
    • Christopher M. Knowlton
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Articulated floor scrubber
    • Patent number 5,742,975
    • Issue date Apr 28, 1998
    • Windsor Industries, Inc.
    • Christopher M. Knowlton
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Articulated floor cleaner
    • Patent number D391697
    • Issue date Mar 3, 1998
    • Windsor Industries, Inc.
    • Christopher M. Knowlton
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Floor scrubber
    • Patent number D382383
    • Issue date Aug 12, 1997
    • Windsor Industries, Inc.
    • Christopher M. Knowlton
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Floor cleaning apparatus with flap having wear indicator
    • Patent number 5,630,246
    • Issue date May 20, 1997
    • Windsor Industries, Inc.
    • Christopher M. Knowlton
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Floor cleaning apparatus with squeegee mounting system
    • Patent number 5,628,086
    • Issue date May 13, 1997
    • Windsor Industries, Inc.
    • Christopher M. Knowlton
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Floor cleaning apparatus with slidable flap
    • Patent number 5,611,108
    • Issue date Mar 18, 1997
    • Windsor Industries, Inc.
    • Christopher M. Knowlton
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Floor cleaning apparatus with pre-filter
    • Patent number 5,608,947
    • Issue date Mar 11, 1997
    • Windsor Industries, Inc.
    • Christopher M. Knowlton
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Floor sweeper
    • Patent number D376227
    • Issue date Dec 3, 1996
    • Windsor Industries, Inc.
    • Christopher M. Knowlton
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Floor cleaning apparatus
    • Patent number 5,555,596
    • Issue date Sep 17, 1996
    • Windsor Industries, Inc.
    • Christopher M. Knowlton
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Floor cleaning apparatus
    • Patent number 5,485,653
    • Issue date Jan 23, 1996
    • Windsor Industries, Inc.
    • Christopher M. Knowlton
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Steering mechanism for a cleaning vehicle
    • Patent number 5,467,500
    • Issue date Nov 21, 1995
    • AAR Corp.
    • Robert J. O'Hara
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Vehicle engine mounting system
    • Patent number 5,346,034
    • Issue date Sep 13, 1994
    • AAR Corp.
    • Christopher M. Knowlton
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Floor scrubber
    • Patent number 5,265,300
    • Issue date Nov 30, 1993
    • AAR Corp.
    • Robert J. O'Hara
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Sweeper vehicle
    • Patent number D329311
    • Issue date Sep 8, 1992
    • AAR Corporation
    • Christopher M. Knowlton
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Vehicle engine mounting system
    • Patent number 5,137,108
    • Issue date Aug 11, 1992
    • AAR Corporation
    • Christopher M. Knowlton
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Machine for floor sweeping and scrubbing
    • Patent number D291932
    • Issue date Sep 15, 1987
    • AAR Brooks & Perkins Corp.
    • Christopher M. Knowlton
    • D32 - Washing, cleaning, or drying machine

Patents Applicationslast 30 patents