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Richard L. Bucholtz

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  • Andover, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Air filter having fluted filter media
    • Patent number 11,185,810
    • Issue date Nov 30, 2021
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Air filter having fluted filter media
    • Patent number 10,556,202
    • Issue date Feb 11, 2020
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Air filter having fluted filter media
    • Patent number 9,782,713
    • Issue date Oct 10, 2017
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Air filter having fluted filter media
    • Patent number 9,162,172
    • Issue date Oct 20, 2015
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Air filter having fluted filter media
    • Patent number 8,562,707
    • Issue date Oct 22, 2013
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Air filter having fluted filter media
    • Patent number 8,206,479
    • Issue date Jun 26, 2012
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Air filter having fluted filter media
    • Patent number 8,002,869
    • Issue date Aug 23, 2011
    • Donaldson Company, Inc.
    • Larry Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter arrangements; side-entry housings; and methods
    • Patent number 7,981,183
    • Issue date Jul 19, 2011
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter arrangements; side-entry housings; and methods
    • Patent number 7,655,074
    • Issue date Feb 2, 2010
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Air filter having fluted filter media
    • Patent number 7,635,403
    • Issue date Dec 22, 2009
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Air filter having fluted filter media
    • Patent number 7,396,375
    • Issue date Jul 8, 2008
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

  • Information Patent Application

    AIR FILTER HAVING FLUTED FILTER MEDIA
    • Publication number 20200254376
    • Publication date Aug 13, 2020
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    AIR FILTER HAVING FLUTED FILTER MEDIA
    • Publication number 20180126317
    • Publication date May 10, 2018
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    AIR FILTER HAVING FLUTED FILTER MEDIA
    • Publication number 20160136562
    • Publication date May 19, 2016
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    AIR FILTER HAVING FLUTED FILTER MEDIA
    • Publication number 20140102057
    • Publication date Apr 17, 2014
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    AIR FILTER HAVING FLUTED FILTER MEDIA
    • Publication number 20120272627
    • Publication date Nov 1, 2012
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    AIR FILTER HAVING FLUTED FILTER MEDIA
    • Publication number 20110296665
    • Publication date Dec 8, 2011
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    FILTER ARRANGEMENTS; SIDE-ENTRY HOUSINGS; AND METHODS
    • Publication number 20100132321
    • Publication date Jun 3, 2010
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    AIR FILTER HAVING FLUTED FILTER MEDIA
    • Publication number 20100095642
    • Publication date Apr 22, 2010
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    AIR FILTER HAVING FLUTED FILTER MEDIA
    • Publication number 20080271423
    • Publication date Nov 6, 2008
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Filter arrangements; side-entry housings; and methods
    • Publication number 20070175194
    • Publication date Aug 2, 2007
    • Donaldson Company, Inc.
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Air filter having fluted filter media
    • Publication number 20050229561
    • Publication date Oct 20, 2005
    • Larry R. Nepsund
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL