| 7913858 |
Acid-neutralizing filter media |
William C. Haberkamp, Barry M. Verdegan |
2011-03-29 |
| 7250126 |
Acid-neutralizing filter media |
William C. Haberkamp, Barry M. Verdegan |
2007-07-31 |
| 6860241 |
Fuel filter including slow release additive |
Harold R. Martin, Joseph C. Drozd, Yu-Sen Chen |
2005-03-01 |
| 6319402 |
Extended life dual full-flow and bypass filter |
Brian W. Schwandt, Peter K. Herman |
2001-11-20 |
| 6273031 |
Clean lubricant circulation system |
Barry M. Verdegan, Peter K. Herman, Brian W. Schwandt, Stephen L. Fallon |
2001-08-14 |
| 6238554 |
Fuel filter including slow release additive |
Harold R. Martin |
2001-05-29 |
| 6082322 |
Electronically controlled continuous lubricating oil replacement system |
John P. Graham, Jerry C. Wang, Leslie A. Roettgen, Donald P. Carver, Colin I. Black +1 more |
2000-07-04 |
| 5970942 |
Electronically controlled continuous lubricating oil replacement system |
David E. Koeberlein, Paul D. Cantrell, Eric S. Keith, John P. Graham, Jerry C. Wang +4 more |
1999-10-26 |
| 5881688 |
Electronically controlled continuous lubricating oil replacement system |
John P. Graham, Jerry C. Wang, Leslie A. Roettgen, Donald P. Carver, Colin I. Black +1 more |
1999-03-16 |
| 5749339 |
Electronically controlled continuous lubricating oil replacement system |
John P. Graham, Jerry C. Wang, Leslie A. Roettgen, Donald P. Carver, Colin I. Black +1 more |
1998-05-12 |