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Duncan MCCALLIEN

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  • Durham, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of marking hydrocarbon liquids
    • Patent number 10,816,533
    • Issue date Oct 27, 2020
    • Johnson Matthey Public Limited Company
    • David Stubbs
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Tracer and method of identifying tracer in product
    • Patent number 10,267,740
    • Issue date Apr 23, 2019
    • Johnson Matthey Public Limited Company
    • Vincent Brian Croud
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Method of marking hydrocarbon liquids
    • Patent number 10,106,754
    • Issue date Oct 23, 2018
    • Johnson Matthey Public Limited Company
    • David Stubbs
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Method of marking hydrocarbon liquids
    • Patent number 9,678,054
    • Issue date Jun 13, 2017
    • Johnson Matthey Public Limited Company
    • David Stubbs
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Tagging method
    • Patent number 9,658,202
    • Issue date May 23, 2017
    • Johnson Matthey PLC
    • Darrell Green
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Method of marking hydrocarbon liquids
    • Patent number 9,625,440
    • Issue date Apr 18, 2017
    • Johnson Matthey Public Limited Company
    • Duncan McCallien
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Tracers and method of marking liquids
    • Patent number 9,506,000
    • Issue date Nov 29, 2016
    • Johnson Matthey Public Limited Company
    • Vincent Brian Croud
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Tracers and method of marking hydrocarbon liquids
    • Patent number 9,090,841
    • Issue date Jul 28, 2015
    • Johnson Matthey Public Limited Company
    • Duncan William John McCallien
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Method and apparatus for measuring fluorescence in liquids
    • Patent number 8,906,698
    • Issue date Dec 9, 2014
    • Johnson Matthey PLC
    • Vincent Brian Croud
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents

  • Information Patent Application

    TRACERS AND METHOD OF MARKING LIQUIDS
    • Publication number 20230021024
    • Publication date Jan 19, 2023
    • Johnson Matthey Public Limited Company
    • Duncan MCCALLIEN
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    TRACERS AND METHOD OF MARKING LIQUIDS
    • Publication number 20220298439
    • Publication date Sep 22, 2022
    • Johnson Matthey Public Limited Company
    • Duncan MCCALLIEN
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    SECURITY DEVICE, METHOD OF MAKING A SECURITY DEVICE AND METHOD OF A...
    • Publication number 20200276854
    • Publication date Sep 3, 2020
    • Johnson Matthey Public Limited Company
    • Damien James GARDINER
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Application

    Method Of Marking Hydrocarbon Liquids
    • Publication number 20190017985
    • Publication date Jan 17, 2019
    • Johnson Matthey Public Limited Company
    • David Stubbs
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    IDENTIFIABLE CHEMICAL PRODUCT
    • Publication number 20180155274
    • Publication date Jun 7, 2018
    • Johnson Matthey Public Limited Company
    • Vincent Brian CROUD
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Application

    METHOD OF MARKING HYDROCARBON LIQUIDS
    • Publication number 20170240826
    • Publication date Aug 24, 2017
    • Johnson Matthey Public Limited Company
    • David STUBBS
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    METHOD OF MAKING HYDROCARBON LIQUIDS
    • Publication number 20170175017
    • Publication date Jun 22, 2017
    • Johnson Matthey Public Limited Company
    • Duncan MCCALLIEN
    • G01 - MEASURING TESTING
  • Information Patent Application

    TRACER AND METHOD OF IDENTIFYING TRACER IN PRODUCT
    • Publication number 20150077745
    • Publication date Mar 19, 2015
    • Johnson Matthey Public Limited Company
    • Vincent Brian Croud
    • G01 - MEASURING TESTING
  • Information Patent Application

    TRACERS AND METHOD OF MARKING LIQUIDS
    • Publication number 20140331547
    • Publication date Nov 13, 2014
    • Johnson Matthey Public Limited Company
    • Vincent Brian Croud
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    TRACERS AND METHOD OF MARKING HYDROCARBON LIQUIDS
    • Publication number 20140331548
    • Publication date Nov 13, 2014
    • Johnson Matthey Public Limited Company
    • Duncan William John McCallien
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    METHOD OF MARKING HYDROCARBON LIQUIDS
    • Publication number 20140120626
    • Publication date May 1, 2014
    • Johnson Matthey Public Limited Company
    • David Stubbs
    • G01 - MEASURING TESTING
  • Information Patent Application

    METHOD OF MARKING HYDROCARBON LIQUIDS
    • Publication number 20140087473
    • Publication date Mar 27, 2014
    • Duncan Mccallien
    • G01 - MEASURING TESTING