TREA

Clifford J. Lafrenz

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  • Donahue, IA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pressure vessel safety lock apparatus
    • Patent number 10,072,443
    • Issue date Sep 11, 2018
    • Marco Group International OPCO, LLC
    • Richard McLaughlin
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Pressure vessel safety lock apparatus
    • Patent number 8,985,646
    • Issue date Mar 24, 2015
    • Marco Group International, Inc.
    • Richard McLaughlin
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Grip for hand-held power tools
    • Patent number 5,031,323
    • Issue date Jul 16, 1991
    • CCH Partnership
    • Thomas W. Honsa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Rotary power tool with vibration damping
    • Patent number 4,905,772
    • Issue date Mar 6, 1990
    • Thomas W. Honsa
    • B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

  • Information Patent Application

    PRESSURE VESSEL SAFETY LOCK APPARATUS
    • Publication number 20150152667
    • Publication date Jun 4, 2015
    • Richard McLaughlin
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    PRESSURE VESSEL SAFETY LOCK APPARATUS
    • Publication number 20130062893
    • Publication date Mar 14, 2013
    • Richard McLaughlin
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES