TREA

Duane Walker Woltjen

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  • Fayetteville, AR, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Texture material applicator
    • Patent number 6,105,882
    • Issue date Aug 22, 2000
    • Marshalltown Trowel Company
    • Duane W. Woltjen
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Finishing trowel including handle
    • Patent number 6,018,841
    • Issue date Feb 1, 2000
    • MarshalltownTrowel Company
    • Curtis Dwight Kelsay
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Finishing trowel handle
    • Patent number 5,713,096
    • Issue date Feb 3, 1998
    • Marshalltown Trowel Company
    • Curtis Dwight Kelsay
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Finishing trowel handle
    • Patent number 5,522,111
    • Issue date Jun 4, 1996
    • Marshalltown Trowel Company
    • Curtis D. Kelsay
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents