TREA

Colin Johnstone

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  • Palmdale, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Seismic actuator
    • Patent number 9,449,773
    • Issue date Sep 20, 2016
    • Colin Johnstone
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Seismic actuator
    • Patent number 8,766,118
    • Issue date Jul 1, 2014
    • Colin Johnstone
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Two-speed, self-propelled dolly for moving and elevating a mobile h...
    • Patent number 4,079,634
    • Issue date Mar 21, 1978
    • Colin G. Johnstone
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS

Patents Applicationslast 30 patents

  • Information Patent Application

    SEISMIC ACTUATOR
    • Publication number 20140318935
    • Publication date Oct 30, 2014
    • Colin Johnstone
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SEISMIC ACTUATOR
    • Publication number 20120118712
    • Publication date May 17, 2012
    • Colin Johnstone
    • H01 - BASIC ELECTRIC ELEMENTS