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Richard M. Pihl

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  • Cottage Grove, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Abrasive brush elements and segments
    • Patent number 7,121,937
    • Issue date Oct 17, 2006
    • 3M Innovative Properties Company
    • Steven E. Turch
    • A46 - BRUSHWARE
  • Information Patent Grant

    Molded abrasive brush and methods of using for manufacture of print...
    • Patent number 7,081,043
    • Issue date Jul 25, 2006
    • 3M Innovative Properties Company
    • Siong Hong Koh
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Abrasive brush with filaments having plastic abrasive particles the...
    • Patent number 6,352,471
    • Issue date Mar 5, 2002
    • 3M Innovative Properties Company
    • Donna W. Bange
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Molded abrasive brush
    • Patent number 6,261,156
    • Issue date Jul 17, 2001
    • 3M Innovative Properties Company
    • David E. Johnson
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Molded abrasive brush
    • Patent number 6,126,533
    • Issue date Oct 3, 2000
    • 3M Innovative Properties Company
    • David E. Johnson
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Bristles of a brush
    • Patent number D427395
    • Issue date Jun 27, 2000
    • 3M Innovative Properties Company
    • Richard M. Pihl
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Bristles of a brush
    • Patent number D425269
    • Issue date May 16, 2000
    • 3M Innovative Properties Company
    • Richard M. Pihl
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Center portion of a brush
    • Patent number D424765
    • Issue date May 9, 2000
    • 3M Innovative Properties Company
    • Yvonne I. Lund
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Bristles of a brush
    • Patent number D424258
    • Issue date May 2, 2000
    • 3M Innovative Properties Company
    • Richard M. Pihl
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Molded brush
    • Patent number 5,915,436
    • Issue date Jun 29, 1999
    • Minnesota Mining and Manufacting Company
    • David E. Johnson
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Molded brush segment
    • Patent number 5,903,951
    • Issue date May 18, 1999
    • Minnesota Mining and Manufacturing Company
    • Richard Ionta
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method of making abrasive filaments comprising abrasive-filled ther...
    • Patent number 5,837,179
    • Issue date Nov 17, 1998
    • Minnesota Mining and Manufacturing Copmany
    • Richard M. Pihl
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Composite abrasive filaments, methods of making same, articles inco...
    • Patent number 5,737,794
    • Issue date Apr 14, 1998
    • Minnesota Mining and Manufacturing Company
    • Loren L. Barber
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Molded abrasive brush
    • Patent number 5,679,067
    • Issue date Oct 21, 1997
    • Minnesota Mining and Manufacturing Company
    • David E. Johnson
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Molded abrasive brush
    • Patent number D381139
    • Issue date Jul 15, 1997
    • Minnesota Mining and Manufacturing Company
    • David E. Johnson
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Composite abrasive filaments, methods of making same, articles inco...
    • Patent number 5,616,411
    • Issue date Apr 1, 1997
    • Minnesota Mining and Manufacturing Company
    • Loren L. Barber
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method of making composite abrasive filaments
    • Patent number 5,571,296
    • Issue date Nov 5, 1996
    • Minnesota Mining and Manufacturing Company
    • Loren L. Barber
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Abrasive article incorporating composite abrasive filament
    • Patent number 5,518,794
    • Issue date May 21, 1996
    • Minnesota Mining and Manufacturing Company
    • Loren L. Barber
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Abrasive filaments comprising abrasive-filled thermoplastic elastomer
    • Patent number 5,491,025
    • Issue date Feb 13, 1996
    • Minnesota Mining and Manufacturing Company
    • Richard M. Pihl
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Composite abrasive filaments, methods of making same, articles inco...
    • Patent number 5,460,883
    • Issue date Oct 24, 1995
    • Minnesota Mining and Manufacturing Company
    • Loren L. Barber
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Abrasive filaments comprising abrasive-filled thermoplastic elastom...
    • Patent number 5,443,906
    • Issue date Aug 22, 1995
    • Minnesota Mining and Manufacturing Company
    • Richard M. Pihl
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Abrasive filaments comprising abrasive-filled thermoplastic elastom...
    • Patent number 5,427,595
    • Issue date Jun 27, 1995
    • Minnesota Mining and Manufacturing
    • Richard M. Pihl
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING

Patents Applicationslast 30 patents