TREA

David A. Shipman

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  • Grand Rapids, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of connecting partition panels
    • Patent number 6,928,785
    • Issue date Aug 16, 2005
    • Steelcase Development Corporation
    • David A. Shipman
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Partition system including floor channel
    • Patent number 6,530,181
    • Issue date Mar 11, 2003
    • Steelcase Development Corporation
    • Charles A. Seiber
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Partition frame construction having wireways and off-module connection
    • Patent number 6,397,532
    • Issue date Jun 4, 2002
    • Steelcase Development Corporation
    • David A. Shipman
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Method of attaching furniture components to partition
    • Patent number 6,286,276
    • Issue date Sep 11, 2001
    • Steelcase Development Corporation
    • David A. Shipman
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Prefabricated furniture
    • Patent number 6,279,643
    • Issue date Aug 28, 2001
    • Steelcase Inc.
    • David A. Shipman
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Integrated prefabricated furniture system for fitting-out open plan...
    • Patent number 6,276,102
    • Issue date Aug 21, 2001
    • Steelcase Development Corporation
    • David A. Shipman
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Floor channel for partition system
    • Patent number 6,266,935
    • Issue date Jul 31, 2001
    • Steelcase Development Corporation
    • Charles A. Seiber
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Prefabricated furniture system
    • Patent number 6,250,020
    • Issue date Jun 26, 2001
    • Steelcase, Inc.
    • David A. Shipman
    • E04 - BUILDING
  • Information Patent Grant

    Curved door assembly for workstation
    • Patent number 6,247,272
    • Issue date Jun 19, 2001
    • Steelcase Development Inc.
    • David A. Shipman
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Wall system
    • Patent number 6,216,398
    • Issue date Apr 17, 2001
    • Steelcase Development Inc.
    • David Allan Shipman
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Method of connecting partitions
    • Patent number 6,167,676
    • Issue date Jan 2, 2001
    • Steelcase Development, Inc.
    • David A. Shipman
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Overhead structures for wall system
    • Patent number 6,158,179
    • Issue date Dec 12, 2000
    • Steelcase Development Inc.
    • Anne C. Ackerly
    • E04 - BUILDING
  • Information Patent Grant

    Partition frame construction having wireways and off-module connection
    • Patent number 6,134,852
    • Issue date Oct 24, 2000
    • Steelcase Development Inc.
    • David A. Shipman
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Partitions with connecting structure
    • Patent number 6,134,845
    • Issue date Oct 24, 2000
    • Steelcase Development Inc.
    • David A. Shipman
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Integrated prefabricated furniture system for fitting-out open plan...
    • Patent number 6,128,873
    • Issue date Oct 10, 2000
    • Steelcase Development Inc.
    • David A. Shipman
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Post and beam supported slatwall
    • Patent number 6,073,399
    • Issue date Jun 13, 2000
    • Steelcase Development Inc.
    • David A. Shipman
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Integrated furniture system
    • Patent number 6,067,762
    • Issue date May 30, 2000
    • Steelcase Development Inc.
    • Ernest P. Greer
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Connection system for partitions
    • Patent number 6,044,612
    • Issue date Apr 4, 2000
    • Steelcase Development Inc.
    • David A. Shipman
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Partition construction having frame and misaligned covers
    • Patent number 5,950,386
    • Issue date Sep 14, 1999
    • Steelcase Inc.
    • David A. Shipman
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Partition system
    • Patent number 5,899,036
    • Issue date May 4, 1999
    • Steelcase Inc.
    • Charles A. Seiber
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Front of a segmented partition panel
    • Patent number D407501
    • Issue date Mar 30, 1999
    • Steelcase Inc.
    • David A. Shipman
    • D25 - Building units and construction elements
  • Information Patent Grant

    Integrated prefabricated furniture system for fitting-out open plan...
    • Patent number 5,809,708
    • Issue date Sep 22, 1998
    • Steelcase Inc.
    • Ernest P. Greer
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Integrated prefabricated furniture system for fitting-out open plan...
    • Patent number 5,784,843
    • Issue date Jul 28, 1998
    • Steelcase Inc.
    • Ernest P. Greer
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Partition system
    • Patent number 5,746,035
    • Issue date May 5, 1998
    • Steelcase Inc.
    • Charles A. Seiber
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Partition system
    • Patent number 5,740,650
    • Issue date Apr 21, 1998
    • Steelcase Inc.
    • Charles A. Seiber
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Furniture arrangement
    • Patent number 5,486,042
    • Issue date Jan 23, 1996
    • Steelcase, Inc.
    • William A. Heisler
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Worksurface utilities module
    • Patent number 5,230,552
    • Issue date Jul 27, 1993
    • Steelcase Inc.
    • Timothy H. Schipper
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Method of connecting partition panels
    • Publication number 20020112443
    • Publication date Aug 22, 2002
    • David A. Shipman
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS