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).
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Publication number: 20240424435Abstract: 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: ApplicationFiled: May 20, 2024Publication date: December 26, 2024Inventors: Qiong Gao, Gregory S. Tronnes, Rakesh Kumar Yadav, Michael A. Madden
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Patent number: 12172111Abstract: 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: GrantFiled: November 18, 2022Date of Patent: December 24, 2024Assignee: 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
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Patent number: 12023613Abstract: 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: GrantFiled: January 14, 2022Date of Patent: July 2, 2024Assignee: Donaldson Company, Inc.Inventors: Qiong Gao, Gregory S. Tronnes, Rakesh Kumar Yadav, Michael A. Madden
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Publication number: 20230149840Abstract: 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: ApplicationFiled: November 18, 2022Publication date: May 18, 2023Inventors: 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
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Patent number: 11504663Abstract: 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: GrantFiled: February 20, 2020Date of Patent: November 22, 2022Assignee: 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
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Publication number: 20220212132Abstract: 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: ApplicationFiled: January 14, 2022Publication date: July 7, 2022Inventors: Qiong Gao, Gregory S. Tronnes, Rakesh Kumar Yadav, Michael A. Madden
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Patent number: 11253802Abstract: 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: GrantFiled: July 19, 2019Date of Patent: February 22, 2022Assignee: Donaldson Company, Inc.Inventors: Qiong Gao, Gregory S. Tronnes, Rakesh Kumar Yadav, Michael A. Madden
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Publication number: 20200330912Abstract: 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: ApplicationFiled: February 20, 2020Publication date: October 22, 2020Inventors: 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
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Patent number: 10610813Abstract: 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: GrantFiled: February 16, 2017Date of Patent: April 7, 2020Assignee: 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
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Publication number: 20190336897Abstract: 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: ApplicationFiled: July 19, 2019Publication date: November 7, 2019Applicant: Donaldson Company, Inc.Inventors: Qiong Gao, Gregory S. Tronnes, Rakesh Kumar Yadav, Michael A. Madden
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Patent number: 10357730Abstract: 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: GrantFiled: March 5, 2014Date of Patent: July 23, 2019Assignee: Donaldson Company, Inc.Inventors: Qiong Gao, Gregory S. Tronnes, Rakesh Kumar Yadav, Michael A. Madden
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Patent number: 9795906Abstract: 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: GrantFiled: December 19, 2013Date of Patent: October 24, 2017Assignee: 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
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Publication number: 20170225105Abstract: 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: ApplicationFiled: February 16, 2017Publication date: August 10, 2017Inventors: 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
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Patent number: 9474994Abstract: 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: GrantFiled: June 17, 2014Date of Patent: October 25, 2016Assignee: DONALDSON COMPANY, INC.Inventors: Qiong Gao, Gregory S. Tronnes, Rakesh Kumar Yadav, Michael A. Madden
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Publication number: 20160129381Abstract: 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: ApplicationFiled: March 5, 2014Publication date: May 12, 2016Inventors: Qiong Gao, Gregory S. Tronnes, Raskesh Kumar Yadav, Michael A. Madden, William Charles Goodson, Richard Patrick DeJong
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Publication number: 20090102094Abstract: 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: ApplicationFiled: December 23, 2008Publication date: April 23, 2009Applicant: Donaldson Company, Inc.Inventors: Patrick Golden, Michael A. Madden
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Patent number: 7488365Abstract: 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: GrantFiled: November 19, 2002Date of Patent: February 10, 2009Assignee: Donaldson Company, Inc.Inventors: Patrick Golden, Michael A. Madden
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Patent number: RE47737Abstract: 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: GrantFiled: June 19, 2017Date of Patent: November 26, 2019Assignee: 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
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Patent number: RE49097Abstract: 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: GrantFiled: November 8, 2019Date of Patent: June 7, 2022Assignee: 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
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Patent number: RE50226Abstract: 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: GrantFiled: June 3, 2022Date of Patent: December 3, 2024Assignee: 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