TREA

Lockhart Gordon McCallum

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  • Richmond, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Floating dock
    • Patent number 9,580,156
    • Issue date Feb 28, 2017
    • 0926084 B.C. Ltd.
    • Daniel Wittenberg
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Water ballasted wave attenuator
    • Patent number 8,132,986
    • Issue date Mar 13, 2012
    • I.M.F.S. International Marine Floatation Systems Inc.
    • Daniel Wittenberg
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

  • Information Patent Application

    FLOATING DOCK
    • Publication number 20150307170
    • Publication date Oct 29, 2015
    • 0926084 B.C. LTD.
    • Daniel WITTENBERG
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    WATER BALLASTED WAVE ATTENUATOR
    • Publication number 20110150573
    • Publication date Jun 23, 2011
    • I.M.F.S. International Marine Floatation Systems Inc.
    • Daniel Wittenberg
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    WATER BALLASTED WAVE ATTENUATOR
    • Publication number 20100067987
    • Publication date Mar 18, 2010
    • I.M.F.S. International Marine Floatation Systems Inc.
    • Daniel Wittenberg
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING