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Thomas A. Boeckermann
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Lakeville, MN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method of servicing an air cleaner and of filtering engine intake a...
Patent number
6,015,452
Issue date
Jan 18, 2000
Donaldson Company, Inc.
Larry R. Nepsund
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Filter element having circular sleeve
Patent number
D407808
Issue date
Apr 6, 1999
Donaldson Company, Inc.
Larry R. Nepsund
D23 - Environmental heating and cooling
Information
Patent Grant
Filter sleeve
Patent number
D404807
Issue date
Jan 26, 1999
Donaldson Company, Inc.
Larry R. Nepsund
D23 - Environmental heating and cooling
Information
Patent Grant
Filter arrangement including removable filter with first and second...
Patent number
5,858,044
Issue date
Jan 12, 1999
Donaldson Company, Inc.
Larry R. Nepsund
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Panel filter construction
Patent number
D402361
Issue date
Dec 8, 1998
Donaldson Company, Inc.
Larry R. Nepsund
D23 - Environmental heating and cooling
Information
Patent Grant
Reinforcing structure for conduit; and method
Patent number
5,685,345
Issue date
Nov 11, 1997
Donaldson Company, Inc.
Steven S. Gieseke
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Advanced disposable air cleaner
Patent number
5,112,372
Issue date
May 12, 1992
Donaldson Company, Inc.
Thomas A. Boeckermann
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Patents Applications
last 30 patents
Information
Patent Application
Fluid Filter Arrangement and Method
Publication number
20080179235
Publication date
Jul 31, 2008
John R. Hacker
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL