TREA

Dave C. Hempfling

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  • Chicago, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Stress plate with angled hole
    • Patent number 5,707,191
    • Issue date Jan 13, 1998
    • Illinois Tool Works Inc.
    • Dave C. Hempfling
    • E04 - BUILDING
  • Information Patent Grant

    Protective seam plate
    • Patent number 5,562,380
    • Issue date Oct 8, 1996
    • Illinois Tool Works Inc.
    • Dave C. Hempfling
    • E04 - BUILDING