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Steven A. Johnson
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St. Paul, MN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Pulse delivery cleaning systems and methods
Patent number
12,005,387
Issue date
Jun 11, 2024
Donaldson Company, Inc.
Stephan A. Graham
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
End cap seal
Patent number
D915564
Issue date
Apr 6, 2021
Donaldson Company, Inc.
Steven A. Johnson
D23 - Environmental heating and cooling
Information
Patent Grant
Air filter assembly having non-cylindrical filter elements, for fil...
Patent number
7,641,708
Issue date
Jan 5, 2010
Donaldson Company, Inc.
Kristofer G. Kosmider
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Air filter assembly having non-cylindrical filter elements, for fil...
Patent number
7,264,656
Issue date
Sep 4, 2007
Donaldson Company, Inc.
Kristofer G. Kosmider
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Filter element having oval shape
Patent number
D499177
Issue date
Nov 30, 2004
Donaldson Company, Inc.
Kristofer G. Kosmider
D23 - Environmental heating and cooling
Information
Patent Grant
Air filter assembly having non-cylindrical filter elements, for fil...
Patent number
6,488,746
Issue date
Dec 3, 2002
Merchant & Gould
Kristofer G. Kosmider
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Air filter assembly having non-cylindrical filter elements, for fil...
Patent number
6,387,162
Issue date
May 14, 2002
Donaldson Company Inc.
Kristofer G. Kosmider
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Filter construction apparatus and method
Patent number
6,368,388
Issue date
Apr 9, 2002
Donaldson Company Inc.
Kristofer Kosmider
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Air filter assembly for filtering air having particulate matter
Patent number
6,364,921
Issue date
Apr 2, 2002
Donaldson Company, Inc.
Thomas D. Raether
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Air filter assembly for filtering air with particulate matter
Patent number
6,090,173
Issue date
Jul 18, 2000
Donaldson Company, Inc.
Steven A. Johnson
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Indicator arrangement for air cleaner systems and methods thereof
Patent number
5,882,379
Issue date
Mar 16, 1999
Donaldson Company, Inc.
Steven Andrew Johnson
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
PULSE DELIVERY CLEANING SYSTEMS AND METHODS
Publication number
20240307810
Publication date
Sep 19, 2024
Donaldson Company, Inc.
Stephan A. Graham
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
FILTER SYSTEMS WITH FILTER BAG ASSEMBLIES INCLUDING FILTER BAGS WIT...
Publication number
20230191303
Publication date
Jun 22, 2023
Donaldson Company, Inc.
Stephan A. Graham
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
ENLARGED OPENING FILTER BAGS, SUPPORT ASSEMBLIES, AND FILTER BAG AS...
Publication number
20220297041
Publication date
Sep 22, 2022
Donaldson Company, Inc.
David V. Gutman
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
FOLDABLE FILTER BAGS, FILTER BAG SUPPORT ASSEMBLIES, AND FILTER BAG...
Publication number
20220297046
Publication date
Sep 22, 2022
Donaldson Company, Inc.
Eric W. E. Collin
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
FILTER ASSEMBLY AND SYSTEM
Publication number
20220241714
Publication date
Aug 4, 2022
Steven A. JOHNSON
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
PULSE DELIVERY CLEANING SYSTEMS AND METHODS
Publication number
20220176300
Publication date
Jun 9, 2022
Donaldson Company, Inc.
Stephan A. Graham
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
FILTER SEAL ASSEMBLY AND SYSTEM
Publication number
20220126229
Publication date
Apr 28, 2022
Donaldson Company, Inc.
Steven A. Johnson
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
POLYGONAL FILTER ELEMENT WITH RADIUSED CORNERS, ASSEMBLIES, AND MET...
Publication number
20080092501
Publication date
Apr 24, 2008
Timothy D. Sporre
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
AIR FILTER ASSEMBLY HAVING NON-CYLINDRICAL FILTER ELEMENTS, FOR FIL...
Publication number
20070256395
Publication date
Nov 8, 2007
Donaldson Company, Inc.
Kristofer G. Kosmider
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Air filter assembly having non-cylindrical filter elements, for fil...
Publication number
20050039601
Publication date
Feb 24, 2005
Donaldson Company, Inc.
Kristofer G. Kosmider
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Air filter assembly having non-cylindrical filter elements, for fil...
Publication number
20020178921
Publication date
Dec 5, 2002
Donaldson Company, Inc.
Kristofer G. Kosmider
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL