TREA

Charles H. Keith

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  • Charlotte, NC, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of manufacturing a tobacco smoke filter
    • Patent number 4,655,736
    • Issue date Apr 7, 1987
    • Brown & Williamson Tobacco Corporation
    • Charles H. Keith
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Tobacco smoke mouthpiece and method of making same
    • Patent number 4,617,946
    • Issue date Oct 21, 1986
    • Brown & Williamson Tobacco Corporation
    • Charles H. Keith
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Compound filter
    • Patent number 4,469,112
    • Issue date Sep 4, 1984
    • Celanese Corporation
    • Colin L. Browne
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Process for preparing compound filter
    • Patent number 4,460,001
    • Issue date Jul 17, 1984
    • Celanese Corporation
    • Colin L. Browne
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Fibrets suitable for paper opacification
    • Patent number 4,460,647
    • Issue date Jul 17, 1984
    • Celanese Corporation
    • Charles H. Keith
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Smoking compositions
    • Patent number 4,319,591
    • Issue date Mar 16, 1982
    • Celanese Corporation
    • Charles H. Keith
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Method of forming cigarette filter material
    • Patent number 4,283,186
    • Issue date Aug 11, 1981
    • Celanese Corporation
    • Charles H. Keith
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Filter material
    • Patent number 4,274,914
    • Issue date Jun 23, 1981
    • Celanese Corporation
    • Charles H. Keith
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Smoking material
    • Patent number 4,233,993
    • Issue date Nov 18, 1980
    • Celanese Corporation
    • Ralph R. Miano
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Smoking material
    • Patent number 4,197,861
    • Issue date Apr 15, 1980
    • Celanese Corporation
    • Charles H. Keith
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Process for producing filter material
    • Patent number 4,192,838
    • Issue date Mar 11, 1980
    • Celanese Corporation
    • Charles H. Keith
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Filter
    • Patent number 4,189,511
    • Issue date Feb 19, 1980
    • Celanese Corporation
    • William E. Levers
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Cellulose ester fibrillar structure
    • Patent number 4,047,862
    • Issue date Sep 13, 1977
    • Celanese Corporation
    • Charles Herbert Keith
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Filter
    • Patent number 4,007,745
    • Issue date Feb 15, 1977
    • Celanese Corporation
    • John Courtright Randall
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
  • Information Patent Grant

    Smoking materials
    • Patent number 3,931,824
    • Issue date Jan 13, 1976
    • Celanese Corporation
    • Ralph R. Miano
    • A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES