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David Albertson

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  • Mound, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cherry picker retrieval device
    • Patent number 11,819,995
    • Issue date Nov 21, 2023
    • David V Albertson
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Permanent magnet air heater
    • Patent number 9,338,833
    • Issue date May 10, 2016
    • Powermag, LLC
    • Robert V. Albertson
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Permanent magnet air heater
    • Patent number 8,844,706
    • Issue date Sep 30, 2014
    • Powermag, LLC
    • Robert V. Albertson
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Permanent magnet air heater
    • Patent number 8,640,851
    • Issue date Feb 4, 2014
    • Powermag, LLC
    • Robert V. Albertson
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Permanent magnet air heater
    • Patent number 8,573,381
    • Issue date Nov 5, 2013
    • Powermag, LLC
    • David Albertson
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Permanent magnet air heater
    • Patent number 8,534,448
    • Issue date Sep 17, 2013
    • Powermag, LLC
    • Robert V. Albertson
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Permanent magnet air heater
    • Patent number 8,511,456
    • Issue date Aug 20, 2013
    • Powermag, LLC
    • Robert V. Albertson
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Permanent magnet fluid heater
    • Patent number 8,418,832
    • Issue date Apr 16, 2013
    • Powermag, LLC
    • Robert V. Albertson
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Hand tool
    • Patent number 6,516,688
    • Issue date Feb 11, 2003
    • David V. Albertson
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Hand tool
    • Patent number 6,276,239
    • Issue date Aug 21, 2001
    • David V. Albertson
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Hand tool
    • Patent number 6,067,881
    • Issue date May 30, 2000
    • David V. Albertson
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Pay telephone communication system
    • Patent number 5,793,851
    • Issue date Aug 11, 1998
    • David V. Albertson
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Track vehicle
    • Patent number D391896
    • Issue date Mar 10, 1998
    • David V. Albertson
    • D12 - Transportation
  • Information Patent Grant

    Liquid cooling stir stick
    • Patent number D369502
    • Issue date May 7, 1996
    • David V. Albertson
    • D07 - Equipment for preparing or serving food or drink not elsewhere specified
  • Information Patent Grant

    Water filter
    • Patent number 5,505,120
    • Issue date Apr 9, 1996
    • David V. Albertson
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Water filter
    • Patent number D360929
    • Issue date Aug 1, 1995
    • David V. Albertson
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Token
    • Patent number D360378
    • Issue date Jul 18, 1995
    • David V. Albertson
    • D11 - Jewelry, symbolic insignia, and ornaments
  • Information Patent Grant

    Combined valve and bottle cap
    • Patent number D353096
    • Issue date Dec 6, 1994
    • David V. Albertson
    • D09 - Packages and containers for goods
  • Information Patent Grant

    Combined valve and bottle cap
    • Patent number D332223
    • Issue date Jan 5, 1993
    • David V. Albertson
    • D09 - Packages and containers for goods
  • Information Patent Grant

    Cap funnel
    • Patent number D325497
    • Issue date Apr 21, 1992
    • David V. Albertson
    • D07 - Equipment for preparing or serving food or drink not elsewhere specified

Patents Applicationslast 30 patents