TREA

Denis J. Dudrey

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  • Bloomington, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Methods and apparatus for centrifuging dry solids
    • Patent number 7,901,343
    • Issue date Mar 8, 2011
    • Advanced Products Laboratories, Inc.
    • Denis J. Dudrey
    • B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
  • Information Patent Grant

    Apparatus and method for a high-efficiency self-cleaning centrifuge...
    • Patent number 7,077,799
    • Issue date Jul 18, 2006
    • Advanced Products Laboratories, Inc.
    • Adelbert Gorham
    • B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
  • Information Patent Grant

    Filter material construction and method
    • Patent number 6,872,431
    • Issue date Mar 29, 2005
    • Donaldson Company, Inc.
    • Brad Kahlbaugh
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Filter material construction and method
    • Patent number 6,521,321
    • Issue date Feb 18, 2003
    • Donaldson Company, Inc.
    • Brad Kahlbaugh
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Filter material construction and method
    • Patent number 6,171,684
    • Issue date Jan 9, 2001
    • Donaldson Company, Inc.
    • Brad Kahlbaugh
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Grant

    Filter material construction and method
    • Patent number 6,165,572
    • Issue date Dec 26, 2000
    • Donaldson Company, Inc.
    • Brad Kahlbaugh
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Grant

    Filtration arrangement
    • Patent number 6,019,809
    • Issue date Feb 1, 2000
    • Donaldson Company, Inc.
    • Brad E. Kahlbaugh
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Air filtration arrangement and method
    • Patent number 5,972,063
    • Issue date Oct 26, 1999
    • Donaldson Company, Inc.
    • Denis J. Dudrey
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Filtration arrangement and method
    • Patent number 5,800,587
    • Issue date Sep 1, 1998
    • Donaldson Company, Inc.
    • Brad E. Kahlbaugh
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Air filtration arrangement and method
    • Patent number 5,797,973
    • Issue date Aug 25, 1998
    • Donaldson Company, Inc.
    • Denis J. Dudrey
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Filtration arrangement
    • Patent number 5,792,227
    • Issue date Aug 11, 1998
    • Donaldson Company, Inc.
    • Brad E. Kahlbaugh
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Filtration arrangement
    • Patent number 5,762,669
    • Issue date Jun 9, 1998
    • Donaldson Company, Inc.
    • Brad E. Kahlbaugh
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Filtration arrangement
    • Patent number 5,762,670
    • Issue date Jun 9, 1998
    • Donaldson Company, Inc.
    • Brad E. Kahlbaugh
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Filter material construction and method
    • Patent number 5,672,399
    • Issue date Sep 30, 1997
    • Donaldson Company, Inc.
    • Brad Kahlbaugh
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Air filtration arrangement
    • Patent number 5,669,949
    • Issue date Sep 23, 1997
    • Donaldson Company, Inc.
    • Denis J. Dudrey
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Filtration arrangement
    • Patent number 5,622,537
    • Issue date Apr 22, 1997
    • Donaldson Company, Inc.
    • Brad E. Kahlbaugh
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Filtration arrangement
    • Patent number 5,423,892
    • Issue date Jun 13, 1995
    • Donaldson Company, Inc.
    • Brad E. Kahlbaugh
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Filtration arrangement and method
    • Patent number 5,364,456
    • Issue date Nov 15, 1994
    • Donaldson Company, Inc.
    • Brad E. Kahlbaugh
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Filtration arrangement
    • Patent number 5,238,474
    • Issue date Aug 24, 1993
    • Donaldson Company, Inc.
    • Brad E. Kahlbaugh
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Filtration arrangement and method
    • Patent number 5,082,476
    • Issue date Jan 21, 1992
    • Donaldson Company, Inc.
    • Brad E. Kahlbaugh
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Cartridge centrifuge
    • Patent number RE32381
    • Issue date Mar 24, 1987
    • Donaldson Company, Inc.
    • Denis J. Dudrey
    • 494 - Imperforate bowl: centrifugal separators
  • Information Patent Grant

    Multi-phase self purging centrifuge
    • Patent number 4,406,651
    • Issue date Sep 27, 1983
    • Donaldson Company, Inc.
    • Denis J. Dudrey
    • B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
  • Information Patent Grant

    Coolant recovery system
    • Patent number 4,366,069
    • Issue date Dec 28, 1982
    • Donaldson Company, Inc.
    • Denis J. Dudrey
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Self-purging centrifuge
    • Patent number 4,350,282
    • Issue date Sep 21, 1982
    • Donaldson Company, Inc.
    • Denis J. Dudrey
    • B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...

Patents Applicationslast 30 patents

  • Information Patent Application

    METHODS AND APPARATUS FOR CENTRIFUGING DRY SOLIDS
    • Publication number 20080026926
    • Publication date Jan 31, 2008
    • ADVANCED PRODUCTS LABORATORIES, INC.
    • Denis J. Dudrey
    • B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
  • Information Patent Application

    Filter material construction and method
    • Publication number 20050210844
    • Publication date Sep 29, 2005
    • Donaldson Company, Inc.
    • Brad kahlbaugh
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Application

    High efficiency self-cleaning centrifuge
    • Publication number 20040112824
    • Publication date Jun 17, 2004
    • Adelbert Gorham
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Application

    Filter material construction and method
    • Publication number 20030167742
    • Publication date Sep 11, 2003
    • Donaldson Company, Inc.
    • Brad kahlbaugh
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Application

    Filter material construction and method
    • Publication number 20010003082
    • Publication date Jun 7, 2001
    • Donaldson Company, Inc.
    • Brad kahlbaugh
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL