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Douglas B. MacDonald

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  • Grand Rapids, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Customizable partition system
    • Patent number 7,461,484
    • Issue date Dec 9, 2008
    • Steelcase Inc.
    • David J. Battey
    • E04 - BUILDING
  • Information Patent Grant

    Panel system
    • Patent number 7,051,482
    • Issue date May 30, 2006
    • Steelcase Development Corporation
    • Douglas B. MacDonald
    • E04 - BUILDING
  • Information Patent Grant

    Ultrasonic tool and method for securing a covering to a frame
    • Patent number 6,821,367
    • Issue date Nov 23, 2004
    • Steelcase Development Corporation
    • Douglas B. MacDonald
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Clip for panel trim
    • Patent number 6,817,147
    • Issue date Nov 16, 2004
    • Steelcase Development Corporation
    • Douglas B. MacDonald
    • E04 - BUILDING
  • Information Patent Grant

    Panel system
    • Patent number 6,684,929
    • Issue date Feb 3, 2004
    • Steelcase Development Corporation
    • Douglas B. MacDonald
    • E04 - BUILDING
  • Information Patent Grant

    Window assembly for partitions
    • Patent number 6,513,288
    • Issue date Feb 4, 2003
    • Steelcase Development Corporation
    • Douglas B. MacDonald
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Thin panel beam
    • Patent number 6,408,579
    • Issue date Jun 25, 2002
    • Steelcase Development Corporation
    • Craig M. Anderson
    • E04 - BUILDING
  • Information Patent Grant

    Stacking connector for partitions
    • Patent number 6,351,917
    • Issue date Mar 5, 2002
    • Steelcase Development Corporation
    • Douglas B. MacDonald
    • E04 - BUILDING
  • Information Patent Grant

    Stacking bracket for partitions
    • Patent number 6,330,773
    • Issue date Dec 18, 2001
    • Steelcase Development Corporation
    • Douglas B. MacDonald
    • E04 - BUILDING
  • Information Patent Grant

    Panel wall construction
    • Patent number 6,250,029
    • Issue date Jun 26, 2001
    • Steelcase Development Inc.
    • Robert Eugene Jeffers
    • E04 - BUILDING
  • Information Patent Grant

    Panel wall construction
    • Patent number 6,209,273
    • Issue date Apr 3, 2001
    • Steelcase Development Inc.
    • Robert Eugene Jeffers
    • E04 - BUILDING
  • Information Patent Grant

    Universal cantilever support bracket
    • Patent number 6,202,966
    • Issue date Mar 20, 2001
    • Steelcase Development Inc.
    • Douglas B. MacDonald
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Panel wall construction
    • Patent number 6,189,270
    • Issue date Feb 20, 2001
    • Steelcase Development Inc.
    • Robert Eugene Jeffers
    • E04 - BUILDING
  • Information Patent Grant

    Panel wall construction
    • Patent number 6,158,178
    • Issue date Dec 12, 2000
    • Steelcase Inc.
    • Robert Eugene Jeffers
    • E04 - BUILDING
  • Information Patent Grant

    Modular window for partition panels
    • Patent number 6,058,667
    • Issue date May 9, 2000
    • Steelcase Development Inc.
    • Douglas B. MacDonald
    • E04 - BUILDING
  • Information Patent Grant

    Expandable and contractible work station
    • Patent number 5,979,118
    • Issue date Nov 9, 1999
    • Steelcase Development Inc.
    • Steven C. Gortsema
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Knock-down hang-on storage unit for portable partition systems
    • Patent number 5,893,616
    • Issue date Apr 13, 1999
    • Steelcase, Inc.
    • Douglas B. MacDonald
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Bracket arrangement for hang-on furniture unit
    • Patent number 5,437,426
    • Issue date Aug 1, 1995
    • Steelcase Inc.
    • Douglas B. MacDonald
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Connector strip for partition panel assembly
    • Publication number 20070039259
    • Publication date Feb 22, 2007
    • Douglas B. MacDonald
    • E04 - BUILDING
  • Information Patent Application

    Panel system
    • Publication number 20060236625
    • Publication date Oct 26, 2006
    • Douglas B. MacDonald
    • E04 - BUILDING
  • Information Patent Application

    Panel system
    • Publication number 20040154756
    • Publication date Aug 12, 2004
    • Douglas B. MacDonald
    • E04 - BUILDING
  • Information Patent Application

    Customizable partition system
    • Publication number 20040020137
    • Publication date Feb 5, 2004
    • David J. Battey
    • E04 - BUILDING
  • Information Patent Application

    Panel system
    • Publication number 20030155083
    • Publication date Aug 21, 2003
    • Douglas B. MacDonald
    • E04 - BUILDING