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Ian D. Doig

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  • Dora Creek, AU
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Patents Grantslast 30 patents

  • Information Patent Grant

    Uni-directional pipeline pig and pipeline assemblies
    • Patent number 9,782,806
    • Issue date Oct 10, 2017
    • Ian Doig
    • B08 - CLEANING
  • Information Patent Grant

    Filtration barrier
    • Patent number 9,221,000
    • Issue date Dec 29, 2015
    • Ian D. Doig
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filtration barrier
    • Patent number 8,640,883
    • Issue date Feb 4, 2014
    • Ian D. Doig
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Duck beak valve
    • Patent number 8,261,777
    • Issue date Sep 11, 2012
    • Ian D. Doig
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Duckbill type check valve with curved and resiliently biased closin...
    • Patent number 8,141,587
    • Issue date Mar 27, 2012
    • Ian Doig
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Valves and pumps
    • Patent number 7,832,431
    • Issue date Nov 16, 2010
    • Ian D. Doig
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Travelling volume pump chamber surface arrangement
    • Patent number 6,872,058
    • Issue date Mar 29, 2005
    • Ian D. Doig
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    Uni-Directional Pipeline Pig and Pipeline Assemblies
    • Publication number 20140209126
    • Publication date Jul 31, 2014
    • Ian Doig
    • B08 - CLEANING
  • Information Patent Application

    Filtration Barrier
    • Publication number 20140102992
    • Publication date Apr 17, 2014
    • Ian D. Doig
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Pipeline Conveyor Systems
    • Publication number 20130011209
    • Publication date Jan 10, 2013
    • Ian D. Doig
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DUCK BEAK VALVE
    • Publication number 20110061756
    • Publication date Mar 17, 2011
    • Ian D. Doig
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    FILTRATION BARRIER
    • Publication number 20110011790
    • Publication date Jan 20, 2011
    • Ian D. Doig
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    DUCKBILL TYPE CHECK VALVE WITH CURVED AND RESILIENTLY BIASED CLOSIN...
    • Publication number 20100288373
    • Publication date Nov 18, 2010
    • Ian Doig
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Valves and Pumps
    • Publication number 20080203001
    • Publication date Aug 28, 2008
    • Ian D. Doig
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Travelling volume pump chamber surface arrangement
    • Publication number 20040096348
    • Publication date May 20, 2004
    • Ian D. Doig
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Diaphragm pump
    • Publication number 20030021707
    • Publication date Jan 30, 2003
    • Ian D Doig
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...