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Keh B. Dema

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  • Johnson City, TN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Filter medium and breather filter structure
    • Patent number 12,172,111
    • Issue date Dec 24, 2024
    • Donaldson Company, Inc.
    • Robert M. Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter medium and structure
    • Patent number RE50226
    • Issue date Dec 3, 2024
    • Donaldson Company, Inc.
    • Brad E. Kahlbaugh
  • Information Patent Grant

    High temperature treated media
    • Patent number 11,821,119
    • Issue date Nov 21, 2023
    • Donaldson Company, Inc.
    • Daniel Little
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Grant

    Liquid filtration media, filter elements and methods
    • Patent number 11,565,206
    • Issue date Jan 31, 2023
    • Donaldson Company, Inc.
    • Derek O. Jones
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    High efficiency synthetic filter media
    • Patent number 11,547,963
    • Issue date Jan 10, 2023
    • Knowlton Technologies, LLC
    • Richard Frank Barlow
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter medium and breather filter structure
    • Patent number 11,504,663
    • Issue date Nov 22, 2022
    • Donaldson Company, Inc.
    • Robert M. Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter medium and structure
    • Patent number RE49097
    • Issue date Jun 7, 2022
    • Donaldson Company, Inc.
    • Brad E. Kahlbaugh
  • Information Patent Grant

    High temperature treated media
    • Patent number 11,180,876
    • Issue date Nov 23, 2021
    • Donaldson Company, Inc.
    • Daniel Little
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Grant

    Process for making high efficiency synthetic filter media
    • Patent number 10,981,096
    • Issue date Apr 20, 2021
    • Knowlton Technologies, LLC
    • Richard Frank Barlow
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Process for utilizing a high efficiency synthetic filter media
    • Patent number 10,913,022
    • Issue date Feb 9, 2021
    • Knowlton Technologies, LLC
    • Richard Frank Barlow
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter medium and breather filter structure
    • Patent number 10,610,813
    • Issue date Apr 7, 2020
    • Donaldson Company, Inc.
    • Robert M. Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter medium and structure
    • Patent number RE47737
    • Issue date Nov 26, 2019
    • Donaldson Company, Inc.
    • Brad E. Kahlbaugh
  • Information Patent Grant

    Liquid filtration media, filter elements and methods
    • Patent number 10,226,723
    • Issue date Mar 12, 2019
    • Donaldson Company, Inc.
    • Derek O. Jones
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter medium and breather filter structure
    • Patent number 9,795,906
    • Issue date Oct 24, 2017
    • Donaldson Company, Inc.
    • Robert M. Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Liquid filtration media, filter elements and methods
    • Patent number 9,056,268
    • Issue date Jun 16, 2015
    • Donaldson Company, Inc.
    • Derek O. Jones
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter medium and breather filter structure
    • Patent number 8,641,796
    • Issue date Feb 4, 2014
    • Donaldson Company, Inc.
    • Robert M. Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter medium and breather filter structure
    • Patent number 8,512,435
    • Issue date Aug 20, 2013
    • Donaldson Company, Inc.
    • Robert M. Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Aerosol separator; and method
    • Patent number 8,460,424
    • Issue date Jun 11, 2013
    • Donaldson Company, Inc.
    • Robert M. Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Aerosol separator
    • Patent number 8,404,014
    • Issue date Mar 26, 2013
    • Donaldson Company, Inc.
    • Joseph Israel
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter medium and breather filter structure
    • Patent number 8,277,529
    • Issue date Oct 2, 2012
    • Donaldson Company, Inc.
    • Robert M. Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter medium and structure
    • Patent number 8,268,033
    • Issue date Sep 18, 2012
    • Donaldson Company, Inc.
    • Robert M. Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Aerosol separator; and method
    • Patent number 8,177,875
    • Issue date May 15, 2012
    • Donaldson Company, Inc.
    • Robert Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter medium and breather filter structure
    • Patent number 8,057,567
    • Issue date Nov 15, 2011
    • Donaldson Company, Inc.
    • David M. Webb
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter media and structure
    • Patent number 8,021,457
    • Issue date Sep 20, 2011
    • Donaldson Company, Inc.
    • Keh B. Dema
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    High strength, high capacity filter media and structure
    • Patent number 7,985,344
    • Issue date Jul 26, 2011
    • Donaldson Company, Inc.
    • Keh B. Dema
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter medium and structure
    • Patent number 7,314,497
    • Issue date Jan 1, 2008
    • Donaldson Company, Inc.
    • Brad E. Kahlbaugh
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter medium and structure
    • Patent number 7,309,372
    • Issue date Dec 18, 2007
    • Donaldson Company, Inc.
    • Brad E. Kahlbaugh
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Ceramic filter construction and method
    • Patent number 5,250,094
    • Issue date Oct 5, 1993
    • Donaldson Company, Inc.
    • H. Young Chung
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

  • Information Patent Application

    HIGH TEMPERATURE TREATED MEDIA
    • Publication number 20240229312
    • Publication date Jul 11, 2024
    • Donaldson Company, Inc.
    • Daniel Little
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Application

    HIGH TEMPERATURE TREATED MEDIA
    • Publication number 20240133092
    • Publication date Apr 25, 2024
    • Donaldson Company, Inc.
    • Daniel Little
    • D10 - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEX...
  • Information Patent Application

    LIQUID FILTRATION MEDIA, FILTER ELEMENTS AND METHODS
    • Publication number 20230226475
    • Publication date Jul 20, 2023
    • Donaldson Company, Inc.
    • Derek O. Jones
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    HIGH EFFICIENCY SYNTHETIC FILTER MEDIA
    • Publication number 20230158430
    • Publication date May 25, 2023
    • Knowlton Technologies, LLC
    • Richard Frank Barlow
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Application

    FILTER MEDIUM AND BREATHER FILTER STRUCTURE
    • Publication number 20230149840
    • Publication date May 18, 2023
    • Donaldson Company, Inc.
    • Robert M. Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    HIGH TEMPERATURE TREATED MEDIA
    • Publication number 20210362081
    • Publication date Nov 25, 2021
    • Donaldson Company, Inc.
    • Daniel Little
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    FILTER MEDIUM AND BREATHER FILTER STRUCTURE
    • Publication number 20200330912
    • Publication date Oct 22, 2020
    • Donaldson Company, Inc.
    • Robert M. Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    LIQUID FILTRATION MEDIA, FILTER ELEMENTS AND METHODS
    • Publication number 20190270040
    • Publication date Sep 5, 2019
    • Donaldson Company, Inc.
    • Derek O. Jones
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    HIGH EFFICIENCY SYNTHETIC FILTER MEDIA
    • Publication number 20180280845
    • Publication date Oct 4, 2018
    • Knowlton Technologies, LLC
    • Richard Frank Barlow
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    PROCESS FOR MAKING HIGH EFFICIENCY SYNTHETIC FILTER MEDIA
    • Publication number 20180280847
    • Publication date Oct 4, 2018
    • Knowlton Technologies, LLC
    • Richard Frank Barlow
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Application

    PROCESS FOR UTILIZING A HIGH EFFICIENCY SYNTHETIC FILTER MEDIA
    • Publication number 20180280846
    • Publication date Oct 4, 2018
    • Knowlton Technologies, LLC
    • Richard Frank Barlow
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Application

    FILTER MEDIUM AND BREATHER FILTER STRUCTURE
    • Publication number 20170225105
    • Publication date Aug 10, 2017
    • Donaldson Company, Inc.
    • Robert M. Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    LIQUID FILTRATION MEDIA, FILTER ELEMENTS AND METHODS
    • Publication number 20160038865
    • Publication date Feb 11, 2016
    • Donaldson Company, Inc.
    • Derek O. Jones
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    FILTER MEDIUM AND BREATHER FILTER STRUCTURE
    • Publication number 20140197094
    • Publication date Jul 17, 2014
    • Donaldson Company, Inc.
    • Robert M. Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    FILTER MEDIUM AND BREATHER FILTER STRUCTURE
    • Publication number 20130008846
    • Publication date Jan 10, 2013
    • Donaldson Company, Inc.
    • Robert M. Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    FILTER MEDIUM AND BREATHER FILTER STRUCTURE
    • Publication number 20120312738
    • Publication date Dec 13, 2012
    • Donaldson Company, Inc.
    • Robert M. Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    AEROSOL SEPARATOR; AND METHOD
    • Publication number 20120210689
    • Publication date Aug 23, 2012
    • Donaldson Company, Inc.
    • Robert Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    FILTER MEDIUM AND STRUCTURE
    • Publication number 20110309012
    • Publication date Dec 22, 2011
    • Donaldson Company, Inc.
    • Robert M. Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    FILTER MEDIUM AND STRUCTURE
    • Publication number 20110215046
    • Publication date Sep 8, 2011
    • Donaldson Company, Inc.
    • Robert M. Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    LIQUID FILTRATION MEDIA, FILTER ELEMENTS AND METHODS
    • Publication number 20110198280
    • Publication date Aug 18, 2011
    • Donaldson Company, Inc.
    • Derek O. Jones
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    AEROSOL SEPARATOR
    • Publication number 20110154790
    • Publication date Jun 30, 2011
    • Donaldson Company, Inc.
    • Joseph Israel
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Process For Making Media For Use in Air/Oil Separators
    • Publication number 20110115102
    • Publication date May 19, 2011
    • Donaldson Company, Inc.
    • Keh B. Dema
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    MEDIA FOR REMOVAL OF ORGANIC COMPOUNDS
    • Publication number 20110005394
    • Publication date Jan 13, 2011
    • Jon D. Joriman
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Aerosol Separator; and Method
    • Publication number 20080245037
    • Publication date Oct 9, 2008
    • Robert Rogers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    High strength, high capacity filter media and structure
    • Publication number 20080073296
    • Publication date Mar 27, 2008
    • Donaldson Company Inc.
    • Keh B. Dema
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Filter medium and structure
    • Publication number 20070039300
    • Publication date Feb 22, 2007
    • Donaldson Company, Inc.
    • Brad E. Kahlbaugh
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    High strength, high capacity filter media and structure
    • Publication number 20060096932
    • Publication date May 11, 2006
    • Keh B. Dema
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Filter medium and structure
    • Publication number 20060096263
    • Publication date May 11, 2006
    • Brad E. Kahlbaugh
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL