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William J. Krisko
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Bloomington, MN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Filter elements; air cleaner; assembly; and, methods
Patent number
11,161,072
Issue date
Nov 2, 2021
Donaldson Company, Inc.
William Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Filter elements; air cleaner; assembly; and, methods
Patent number
11,014,036
Issue date
May 25, 2021
Donaldson Company, Inc.
William J. Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Filter elements; air cleaner; assembly; and, methods
Patent number
10,500,533
Issue date
Dec 10, 2019
Donaldson Company, Inc.
William Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Filter elements; air cleaner; assembly; and, methods
Patent number
10,335,730
Issue date
Jul 2, 2019
Donaldson Company, Inc.
William J. Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Filter elements; air cleaner; assembly; and, methods
Patent number
9,993,763
Issue date
Jun 12, 2018
Donaldson Company, Inc.
William Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Filter elements; air cleaner; assembly; and, methods
Patent number
9,610,530
Issue date
Apr 4, 2017
Donaldson Company, Inc.
William J. Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Filter elements; air cleaner; assembly; and, methods
Patent number
9,295,936
Issue date
Mar 29, 2016
Donaldson Company, Inc.
William J. Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Filter elements; air cleaner; assembly; and, methods
Patent number
8,778,043
Issue date
Jul 15, 2014
Donaldson Company, Inc.
William J. Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Multistage air cleaner including pulse cleaning system
Patent number
8,444,748
Issue date
May 21, 2013
Donaldson Company, Inc.
Gary R. Gillingham
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Filter elements; air cleaner; assembly; and, methods
Patent number
8,101,003
Issue date
Jan 24, 2012
Donaldson Company, Inc.
William J. Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Filter elements; air cleaner; assembly; and, methods
Patent number
7,993,422
Issue date
Aug 9, 2011
Donaldson Company, Inc.
William Joseph Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Filter elements; air cleaner; assembly; and methods
Patent number
7,674,308
Issue date
Mar 9, 2010
Donaldson Company, Inc.
William J. Krisko
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Filter elements; air cleaner; assembly; and, methods
Patent number
7,645,310
Issue date
Jan 12, 2010
Donaldson Company, Inc.
William Joseph Krisko
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Filter elements; air cleaner; assembly; and, methods
Patent number
7,491,254
Issue date
Feb 17, 2009
Donaldson Company, Inc.
William Joseph Krisko
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Multistage air cleaner including pulse cleaning system
Patent number
7,090,711
Issue date
Aug 15, 2006
Donaldson Company, Inc.
Gary R. Gillingham
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Air cleaner and method of filtering
Patent number
7,008,467
Issue date
Mar 7, 2006
Donaldson Company, Inc.
William Joseph Krisko
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Restriction indicator
Patent number
6,976,448
Issue date
Dec 20, 2005
Donaldson Company, Inc.
William J. Krisko
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Air filter cartridge
Patent number
6,966,940
Issue date
Nov 22, 2005
Donaldson Company, Inc.
William Joseph Krisko
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Multistage air cleaner including pulse cleaning system
Patent number
6,908,494
Issue date
Jun 21, 2005
Donaldson Company, Inc.
Gary R. Gillingham
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Multistage air cleaner including pulse cleaning system
Patent number
6,872,237
Issue date
Mar 29, 2005
Donaldson Company, Inc.
Gary R. Gillingham
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Multistage air cleaner including pulse cleaning system
Patent number
6,676,721
Issue date
Jan 13, 2004
Donaldson Company, Inc.
Gary R. Gillingham
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Restriction indicator
Patent number
6,604,486
Issue date
Aug 12, 2003
Donaldson Company, Inc.
William J. Krisko
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Multi-layered filter apparatus
Patent number
4,647,373
Issue date
Mar 3, 1987
Donaldson Company, Inc.
Joseph C. Tokar
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Air inlet grille for engine compartment
Patent number
4,198,219
Issue date
Apr 15, 1980
The United States of America as represented by the Secretary of the Army
William J. Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
FILTER ELEMENTS; AIR CLEANER; ASSEMBLY; AND, METHODS
Publication number
20200215475
Publication date
Jul 9, 2020
Donaldson Company, Inc.
William Krisko
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
FILTER ELEMENTS; AIR CLEANER; ASSEMBLY; AND, METHODS
Publication number
20190366258
Publication date
Dec 5, 2019
Donaldson Company, Inc.
William J. Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
FILTER ELEMENTS; AIR CLEANER; ASSEMBLY; AND, METHODS
Publication number
20180361301
Publication date
Dec 20, 2018
Donaldson Company, Inc.
William Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
FILTER ELEMENTS; AIR CLEANER; ASSEMBLY; AND, METHODS
Publication number
20170274314
Publication date
Sep 28, 2017
Donaldson Company, Inc.
William J. Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
FILTER ELEMENTS; AIR CLEANER; ASSEMBLY; AND, METHODS
Publication number
20160271551
Publication date
Sep 22, 2016
Donaldson Company, Inc.
William Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
FILTER ELEMENTS; AIR CLEANER; ASSEMBLY; AND, METHODS
Publication number
20150068174
Publication date
Mar 12, 2015
Donaldson Company, Inc.
William J. Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
FILTER ELEMENTS; AIR CLEANER; ASSEMBLY; AND, METHODS
Publication number
20130019576
Publication date
Jan 24, 2013
Donaldson Company, Inc.
William J. Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
FILTER ELEMENTS; AIR CLEANER; ASSEMBLY; AND, METHODS
Publication number
20100115897
Publication date
May 13, 2010
Donaldson Company, Inc.
William J. Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Filter elements; air cleaner; assembly; and, methods
Publication number
20100107577
Publication date
May 6, 2010
Donaldson Company, Inc.
William Joseph Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
FILTER ELEMENTS; AIR CLEANER; ASSEMBLY; AND, METHODS
Publication number
20090145093
Publication date
Jun 11, 2009
Donaldson Company, Inc.
William Joseph Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Filter Elements; Air Cleaner; Assemby; And Methods
Publication number
20080016832
Publication date
Jan 24, 2008
Donaldson Company, Inc.
William J. Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
MULTISTAGE AIR CLEANER INCLUDING PULSE CLEANING SYSTEM
Publication number
20070186774
Publication date
Aug 16, 2007
Donaldson Company, Inc.
Gary R. Gillingham
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
MULTISTAGE AIR CLEANER INCLUDING PULSE CLEANING SYSTEM
Publication number
20060277871
Publication date
Dec 14, 2006
Gary R. Gillingham
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Filter Elements; Air Cleaner; Assembly; and, Methods
Publication number
20060101795
Publication date
May 18, 2006
Donaldson Company, Inc.
William Joseph Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Multistage air cleaner including pulse cleaning system
Publication number
20050166559
Publication date
Aug 4, 2005
Donaldson Company, Inc.
Gary R. Gillingham
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Filter elements; air cleaner; assembly; and, methods
Publication number
20050022484
Publication date
Feb 3, 2005
Donaldson Company, Inc.
William Joseph Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Restriction indicator
Publication number
20040187765
Publication date
Sep 30, 2004
Donaldson Company, Inc.
William J. Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Multistage air cleaner including pulse cleaning system
Publication number
20040144253
Publication date
Jul 29, 2004
Donaldson Company, Inc.
Gary R. Gillingham
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Multistage air cleaner including pulse cleaning system
Publication number
20040139707
Publication date
Jul 22, 2004
Donaldson Company, Inc.
Gary R. Gillingham
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Filter elements; air cleaner; assembly; and, methods
Publication number
20030217534
Publication date
Nov 27, 2003
William Joseph Krisko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL