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Michael A. Madden

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  • Woodbury, MN, 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

    Filter media and elements
    • Patent number 12,023,613
    • Issue date Jul 2, 2024
    • Donaldson Company, Inc.
    • Qiong Gao
    • 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

    Filter media and elements
    • Patent number 11,253,802
    • Issue date Feb 22, 2022
    • Donaldson Company, Inc.
    • Qiong Gao
    • 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

    Filter media and elements
    • Patent number 10,357,730
    • Issue date Jul 23, 2019
    • Donaldson Company, Inc.
    • Qiong Gao
    • 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

    Filter media and elements
    • Patent number 9,474,994
    • Issue date Oct 25, 2016
    • Donaldson Company, Inc.
    • Qiong Gao
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter element using corrugated media sheet
    • Patent number 7,488,365
    • Issue date Feb 10, 2009
    • Donaldson Company, Inc.
    • Patrick Golden
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Method of making a filter device
    • Patent number 6,168,681
    • Issue date Jan 2, 2001
    • Donaldson & Company, Inc.
    • Cynthia D. Bellefeuille
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter device
    • Patent number 5,869,009
    • Issue date Feb 9, 1999
    • Donaldson Company, Inc.
    • Cynthia D. Bellefeuille
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    FILTER MEDIA AND ELEMENTS
    • Publication number 20240424435
    • Publication date Dec 26, 2024
    • Donaldson Company, Inc.
    • Qiong Gao
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • 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

    FILTER MEDIA AND ELEMENTS
    • Publication number 20220212132
    • Publication date Jul 7, 2022
    • Donaldson Company, Inc.
    • Qiong Gao
    • 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

    FILTER MEDIA AND ELEMENTS
    • Publication number 20190336897
    • Publication date Nov 7, 2019
    • Donaldson Company, Inc.
    • Qiong Gao
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • 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

    FILTER MEDIA AND ELEMENTS
    • Publication number 20160129381
    • Publication date May 12, 2016
    • Donaldson Company, Inc.
    • Qiong Gao
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    MEDIA, FILTER ELEMENT USING CORRUGATED MEDIA SHEET, CORRUGATED SHEE...
    • Publication number 20090102094
    • Publication date Apr 23, 2009
    • Donaldson Company, Inc.
    • Patrick Golden
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Filter element using corrugated media sheet
    • Publication number 20050252182
    • Publication date Nov 17, 2005
    • DONALDSON COMPANY
    • Patrick Golden
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL