TREA

Robert K. Kopras

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  • Black Earth, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Attachment for power tool
    • Patent number 7,854,054
    • Issue date Dec 21, 2010
    • Robert Bosch Tool Corporation
    • Robert K. Kopras
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Angle attachment for power tool
    • Patent number RE40304
    • Issue date May 6, 2008
    • Robert Bosch GmbH
    • Robert K. Kopras
    • 451 - Abrading
  • Information Patent Grant

    Attachment for power tool
    • Patent number 7,131,180
    • Issue date Nov 7, 2006
    • Credo Technology Corporation
    • Robert K. Kopras
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Power tool
    • Patent number 7,094,011
    • Issue date Aug 22, 2006
    • Credo Technology Corporation
    • Robert K. Kopras
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Jig assembly
    • Patent number 6,926,477
    • Issue date Aug 9, 2005
    • Credo Technology Corporation
    • Markus Allemann
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Power tool with light emitting diode
    • Patent number 6,890,135
    • Issue date May 10, 2005
    • Credo Technology Corporation
    • Robert Kopras
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Automatic locking depth guide for cutting tools and the like
    • Patent number 6,854,938
    • Issue date Feb 15, 2005
    • Credo Technology Corporation
    • Robert K. Kopras
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Power tool with automatic locking depth guide
    • Patent number D473770
    • Issue date Apr 29, 2003
    • Roto Zip Tool Corporation
    • Robert K. Kopras
    • D08 - Tools and hardware
  • Information Patent Grant

    Power tool with automatic locking depth guide
    • Patent number D465712
    • Issue date Nov 19, 2002
    • Roto Zip Tool Corporation
    • Robert K. Kopras
    • D08 - Tools and hardware
  • Information Patent Grant

    Automatic locking depth guide
    • Patent number D465393
    • Issue date Nov 12, 2002
    • Roto Zip Tool Corporation
    • Robert K. Kopras
    • D08 - Tools and hardware
  • Information Patent Grant

    Automatic locking depth guide for cutting tools and the like
    • Patent number 6,443,676
    • Issue date Sep 3, 2002
    • Roto Zip Tool Corporation
    • Robert K. Kopras
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Hand-held power tool
    • Patent number 6,443,675
    • Issue date Sep 3, 2002
    • Roto Zip Tool Corporation
    • Robert K. Kopras
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Angle attachment for power tool
    • Patent number 6,048,260
    • Issue date Apr 11, 2000
    • Roto Zip Tool Corporation
    • Robert K. Kopras
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Spiral cutting tool with detachable battery pack
    • Patent number 5,902,080
    • Issue date May 11, 1999
    • Roto Zip Tool Corporation
    • Robert K. Kopras
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Spiral cutting tool with detachable handle
    • Patent number 5,813,805
    • Issue date Sep 29, 1998
    • Robert K. Kopras
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Wood router bit
    • Patent number 5,323,823
    • Issue date Jun 28, 1994
    • Roto Zip Tool Corporation
    • Robert K. Kopras
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Bit for cutting sheetrock
    • Patent number 5,143,490
    • Issue date Sep 1, 1992
    • Roto Zip Tool Corporation
    • Robert K. Kopras
    • B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

  • Information Patent Application

    Attachment for power tool
    • Publication number 20070022595
    • Publication date Feb 1, 2007
    • Credo Technology Corporation
    • Robert K. Kopras
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    Power tool
    • Publication number 20050166741
    • Publication date Aug 4, 2005
    • Credo Technology Corporation
    • Robert K. Kopras
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    Attachment for power tool
    • Publication number 20050081364
    • Publication date Apr 21, 2005
    • Credo Technology Corporation
    • Robert K. Kopras
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    Power tool with light emitting diode
    • Publication number 20050025599
    • Publication date Feb 3, 2005
    • Credo Technology Corporation
    • Robert K. Kopras
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    Jig assembly
    • Publication number 20040126197
    • Publication date Jul 1, 2004
    • Credo Technology Corporation
    • Markus Allemann
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Automatic locking depth guide for cutting tools and the like
    • Publication number 20030206779
    • Publication date Nov 6, 2003
    • Robert K. Kopras
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    Power tool with light emitting diode
    • Publication number 20020197123
    • Publication date Dec 26, 2002
    • Roto Zip Tool Corporation
    • Robert K. Kopras
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...