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Martin G. Duke

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  • Southampton, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Multi-filter for a smoking product
    • Patent number 9,961,936
    • Issue date May 8, 2018
    • British American Tobacco (Germany) GmbH
    • Horst Grzonka
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Filter for a smoking article
    • Patent number 9,259,031
    • Issue date Feb 16, 2016
    • BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED
    • Peter Branton
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Smoking article filter
    • Patent number 8,752,556
    • Issue date Jun 17, 2014
    • British American Tobacco (Investments) Limited
    • Peter Rex White
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Smoking article mouthpieces
    • Patent number 4,911,684
    • Issue date Mar 27, 1990
    • British American Tobacco Company Limited
    • Martin G. Duke
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Smoking-articles mouthpieces-elements
    • Patent number 4,700,724
    • Issue date Oct 20, 1987
    • British American Tobacco Company Limited
    • Henry G. Horsewell
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Tobacco smoke filters
    • Patent number 4,660,579
    • Issue date Apr 28, 1987
    • British American Tobacco Company Limited
    • Henry G. Horsewell
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Smoking articles
    • Patent number 4,660,576
    • Issue date Apr 28, 1987
    • British American Tobacco Company Limited
    • Henry G. Horsewell
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Smoking articles
    • Patent number 4,649,942
    • Issue date Mar 17, 1987
    • British-American Tobacco Company, Ltd.
    • Henry G. Horsewell
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Smoking article mouthpiece elements
    • Patent number 4,644,964
    • Issue date Feb 24, 1987
    • British American Tobacco Company Limited
    • Martin G. Duke
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES

Patents Applicationslast 30 patents

  • Information Patent Application

    FILTER FOR A SMOKING ARTICLE
    • Publication number 20140137881
    • Publication date May 22, 2014
    • British American Tobacco (Investments) Limited
    • Peter Branton
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Application

    Multi-Filter for a Smoking Product
    • Publication number 20120055496
    • Publication date Mar 8, 2012
    • Horst Grzonka
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Application

    Filter For A Smoking Article
    • Publication number 20110247637
    • Publication date Oct 13, 2011
    • Martin Duke
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Application

    Filter for a Smoking Article
    • Publication number 20110232660
    • Publication date Sep 29, 2011
    • Martin Duke
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Application

    Filter For A Smoking Article
    • Publication number 20110220134
    • Publication date Sep 15, 2011
    • Martin Duke
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Application

    Smoking Article Filter
    • Publication number 20090288671
    • Publication date Nov 26, 2009
    • British American Tobacco (Investments) Limited
    • Peter Rex White
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES