| 11185810 |
Air filter having fluted filter media |
Bradley Kuempel, Donald F. Engel, Bruce Allen Boehrs, Sheldon Anderson, Richard L. Bucholtz +1 more |
2021-11-30 |
| 10556202 |
Air filter having fluted filter media |
Bradley Kuempel, Donald F. Engel, Bruce Allen Boehrs, Sheldon Anderson, Richard L. Bucholtz +1 more |
2020-02-11 |
| 9782713 |
Air filter having fluted filter media |
Bradley Kuempel, Donald F. Engel, Bruce Allen Boehrs, Sheldon Anderson, Richard L. Bucholtz +1 more |
2017-10-10 |
| 9162172 |
Air filter having fluted filter media |
Bradley Kuempel, Donald F. Engel, Bruce Allen Boehrs, Sheldon Anderson, Richard L. Bucholtz +1 more |
2015-10-20 |
| 8562707 |
Air filter having fluted filter media |
Bradley Kuempel, Donald F. Engel, Bruce Allen Boehrs, Sheldon Anderson, Richard L. Bucholtz +1 more |
2013-10-22 |
| 8206479 |
Air filter having fluted filter media |
Bradley Kuempel, Donald F. Engel, Bruce Allen Boehrs, Sheldon Anderson, Richard L. Bucholtz +1 more |
2012-06-26 |
| 8002869 |
Air filter having fluted filter media |
Bradley Kuempel, Donald P. Engel, Bruce Allen Boehrs, Sheldon Anderson, Richard L. Bucholtz +1 more |
2011-08-23 |
| 7981183 |
Filter arrangements; side-entry housings; and methods |
Bradley Kuempel, Donald F. Engel, Bruce Allen Boehrs, Sheldon Anderson, Richard L. Bucholtz +2 more |
2011-07-19 |
| 7655074 |
Filter arrangements; side-entry housings; and methods |
Bradley Kuempel, Donald F. Engel, Bruce Allen Boehrs, Sheldon Anderson, Richard L. Bucholtz +2 more |
2010-02-02 |
| 7635403 |
Air filter having fluted filter media |
Bradley Kuempel, Donald F. Engel, Bruce Allen Boehrs, Sheldon Anderson, Richard L. Bucholtz +1 more |
2009-12-22 |
| 7396375 |
Air filter having fluted filter media |
Bradley Kuempel, Donald F. Engel, Bruce Allen Boehrs, Sheldon Anderson, Richard L. Bucholtz +1 more |
2008-07-08 |
| 6976448 |
Restriction indicator |
William J. Krisko, William E. Couillard, Robert W. Diver, Wayne A. Kaul, Bernard A. Matthys |
2005-12-20 |
| D497202 |
Filter for engine |
Steve A. Carter, Nick Miu, Jordan Flagstad, Steve Stavos |
2004-10-12 |
| 6604486 |
Restriction indicator |
William J. Krisko, William E. Couillard, Robert W. Diver, Wayne A. Kaul, Bernard A. Matthys |
2003-08-12 |
| 6161417 |
Restriction indicator for air cleaners |
— |
2000-12-19 |
| 6015452 |
Method of servicing an air cleaner and of filtering engine intake air using prefilter arrangements |
Kathleen A. Abrahamson, Thomas A. Boeckermann, James K. Elfstrand |
2000-01-18 |
| D407808 |
Filter element having circular sleeve |
Kathleen A. Abrahamson, Thomas A. Boeckermann, James K. Elfstrand |
1999-04-06 |
| D404807 |
Filter sleeve |
Kathleen A. Abrahamson, Thomas A. Boeckermann, James K. Elfstrand |
1999-01-26 |
| 5858044 |
Filter arrangement including removable filter with first and second media secured together |
Kathleen A. Abrahamson, Thomas A. Boeckermann, James K. Elfstrand |
1999-01-12 |
| D402361 |
Panel filter construction |
Kathleen A. Abrahamson, Thomas A. Boeckermann, James K. Elfstrand |
1998-12-08 |
| 5685345 |
Reinforcing structure for conduit; and method |
Steven Scott Gieseke, Thomas A. Boeckermann |
1997-11-11 |
| 5474337 |
Joint and seal system for air transfer tubes |
John D. Sandkamp |
1995-12-12 |
| 5112372 |
Advanced disposable air cleaner |
Thomas A. Boeckermann, John D. Sandkamp |
1992-05-12 |