Patents by Inventor Michael A. Madden

Michael A. Madden has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240424435
    Abstract: Fibrous filter medium that includes a melt-blown filter layer comprising melt-blown fibers and a high-efficiency glass-containing filter layer comprising glass fibers.
    Type: Application
    Filed: May 20, 2024
    Publication date: December 26, 2024
    Inventors: Qiong Gao, Gregory S. Tronnes, Rakesh Kumar Yadav, Michael A. Madden
  • Patent number: 12172111
    Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate and/or fluid mist load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: December 24, 2024
    Assignee: Donaldson Company, Inc.
    Inventors: Robert M. Rogers, Keh B. Dema, Brad E. Kahlbaugh, Linda M. Olson, Chuanfang Yang, Gregory L. LaVallee, Timothy D. Sporre, Joe Israel, Paul L Kojetin, Derek O. Jones, Michael A. Madden
  • Patent number: 12023613
    Abstract: Fibrous filter medium that includes a melt-blown filter layer comprising melt-blown fibers and a high-efficiency glass-containing filter layer comprising glass fibers.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: July 2, 2024
    Assignee: Donaldson Company, Inc.
    Inventors: Qiong Gao, Gregory S. Tronnes, Rakesh Kumar Yadav, Michael A. Madden
  • Publication number: 20230149840
    Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate and/or fluid mist load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.
    Type: Application
    Filed: November 18, 2022
    Publication date: May 18, 2023
    Inventors: Robert M. Rogers, Keh B. Dema, Brad E. Kahlbaugh, Linda M. Olson, Chuanfang Yang, Gregory L. LaVallee, Timothy D. Sporre, Joe Israel, Paul L. Kojetin, Derek O. Jones, Michael A. Madden
  • Patent number: 11504663
    Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate and/or fluid mist load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: November 22, 2022
    Assignee: Donaldson Company, Inc.
    Inventors: Robert M. Rogers, Keh B. Dema, Brad E. Kahlbaugh, Linda M. Olson, Chuanfang Yang, Gregory L. LaVallee, Timothy D. Sporre, Joe Israel, Paul L. Kojetin, Derek O. Jones, Michael A. Madden
  • Publication number: 20220212132
    Abstract: Fibrous filter medium that includes a melt-blown filter layer comprising melt-blown fibers and a high-efficiency glass-containing filter layer comprising glass fibers.
    Type: Application
    Filed: January 14, 2022
    Publication date: July 7, 2022
    Inventors: Qiong Gao, Gregory S. Tronnes, Rakesh Kumar Yadav, Michael A. Madden
  • Patent number: 11253802
    Abstract: Fibrous filter medium that includes a melt-blown filter layer comprising melt-blown fibers and a high-efficiency glass-containing filter layer comprising glass fibers.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: February 22, 2022
    Assignee: Donaldson Company, Inc.
    Inventors: Qiong Gao, Gregory S. Tronnes, Rakesh Kumar Yadav, Michael A. Madden
  • Publication number: 20200330912
    Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate and/or fluid mist load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.
    Type: Application
    Filed: February 20, 2020
    Publication date: October 22, 2020
    Inventors: Robert M. Rogers, Keh B. Dema, Brad E. Kahlbaugh, Linda M. Olson, Chuanfang Yang, Gregory L. LaVallee, Timothy D. Sporre, Joe Israel, Paul L. Kojetin, Derek O. Jones, Michael A. Madden
  • Patent number: 10610813
    Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate and/or fluid mist load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: April 7, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Robert M. Rogers, Keh B. Dema, Brad E. Kahlbaugh, Linda M. Olson, Chuanfang Yang, Gregory L. LaVallee, Timothy D. Sporre, Joe Israel, Paul L. Kojetin, Derek O. Jones, Michael A. Madden
  • Publication number: 20190336897
    Abstract: Fibrous filter medium that includes a melt-blown filter layer comprising melt-blown fibers and a high-efficiency glass-containing filter layer comprising glass fibers.
    Type: Application
    Filed: July 19, 2019
    Publication date: November 7, 2019
    Applicant: Donaldson Company, Inc.
    Inventors: Qiong Gao, Gregory S. Tronnes, Rakesh Kumar Yadav, Michael A. Madden
  • Patent number: 10357730
    Abstract: Fibrous filter medium that includes a melt-blown filter layer comprising melt-blown fibers and a high-efficiency glass-containing filter layer comprising glass fibers.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: July 23, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Qiong Gao, Gregory S. Tronnes, Rakesh Kumar Yadav, Michael A. Madden
  • Patent number: 9795906
    Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate and/or fluid mist load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: October 24, 2017
    Assignee: DONALDSON COMPANY, INC.
    Inventors: Robert M. Rogers, Keh B. Dema, Brad E. Kahlbaugh, Linda M. Olson, Chuanfang Yang, Gregory L. LaVallee, Timothy D. Sporre, Joe Israel, Paul L. Kojetin, Derek O. Jones, Michael A. Madden
  • Publication number: 20170225105
    Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate and/or fluid mist load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.
    Type: Application
    Filed: February 16, 2017
    Publication date: August 10, 2017
    Inventors: Robert M. Rogers, Keh B. Dema, Brad E. Kahlbaugh, Linda M. Olson, Chuanfang Yang, Gregory L. LaVallee, Timothy D. Sporre, Joe Israel, Paul L. Kojetin, Derek O. Jones, Michael A. Madden
  • Patent number: 9474994
    Abstract: Fibrous filter medium that includes a melt-blown filter layer comprising melt-blown fibers and a high-efficiency glass-containing filter layer comprising glass fibers.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: October 25, 2016
    Assignee: DONALDSON COMPANY, INC.
    Inventors: Qiong Gao, Gregory S. Tronnes, Rakesh Kumar Yadav, Michael A. Madden
  • Publication number: 20160129381
    Abstract: Fibrous filter medium that includes a melt-blown filter layer comprising melt-blown fibers and a high-efficiency glass-containing filter layer comprising glass fibers.
    Type: Application
    Filed: March 5, 2014
    Publication date: May 12, 2016
    Inventors: Qiong Gao, Gregory S. Tronnes, Raskesh Kumar Yadav, Michael A. Madden, William Charles Goodson, Richard Patrick DeJong
  • Publication number: 20090102094
    Abstract: A corrugated web having tapered flutes is usable in straight-through flow filter elements. The corrugated web can be made by passage between a pair of corrugated rollers having tapered teeth. Methods of making usable corrugated rollers include methods for generating the tapered teeth at the end points and the extension between the end points. Corrugated webs may be made from a variety of media, including certain media that stretches in the machine direction. Methods of forming the corrugated web into filter elements (e.g., air filter elements) includes forming filter media by securing a flat sheet to the corrugated web. The filter media may then be wound into a filter element, including application of sealant during the winding process to close selected flutes.
    Type: Application
    Filed: December 23, 2008
    Publication date: April 23, 2009
    Applicant: Donaldson Company, Inc.
    Inventors: Patrick Golden, Michael A. Madden
  • Patent number: 7488365
    Abstract: A corrugated web having tapered flutes is usable in straight-through flow filter elements. The corrugated web can be made by passage between a pair of corrugated rollers having tapered teeth. Methods of making usable corrugated rollers include methods for generating the tapered teeth at the end points and the extension between the end points. Corrugated webs may be made from a variety of media, including certain media that stretches in the machine direction. Methods of forming the corrugated web into filter elements (e.g., air filter elements) includes forming filter media by securing a flat sheet to the corrugated web. The filter media may then be wound into a filter element, including application of sealant during the winding process to close selected flutes.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: February 10, 2009
    Assignee: Donaldson Company, Inc.
    Inventors: Patrick Golden, Michael A. Madden
  • Patent number: RE47737
    Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: November 26, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Brad E. Kahlbaugh, Keh B. Dema, Linda M. Olson, Joe Israel, Derek O. Jones, Gregory L. LaVallee, Michael A. Madden, Chuanfang Yang, Robert M. Rogers, Paul L. Kojetin, Timothy D. Sporre
  • Patent number: RE49097
    Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: June 7, 2022
    Assignee: Donaldson Company, Inc.
    Inventors: Brad E. Kahlbaugh, Keh B. Dema, Linda M. Olson, Joe Israel, Derek O. Jones, Gregory L. LaVallee, Michael A. Madden, Chuanfang Yang, Robert M. Rogers, Paul L. Kojetin, Timothy D. Sporre
  • Patent number: RE50226
    Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.
    Type: Grant
    Filed: June 3, 2022
    Date of Patent: December 3, 2024
    Assignee: Donaldson Company, Inc.
    Inventors: Brad E. Kahlbaugh, Keh B. Dema, Linda M. Olson, Joe Israel, Derek O. Jones, Gregory L. LaVallee, Michael A. Madden, Chuanfang Yang, Robert M. Rogers, Paul L. Kojetin, Timothy D. Sporre