Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8366798 | Filter and method of making | Philip P. Treier, Michael S. Lynch | 2013-02-05 |
| 8012232 | Filter and method of making | Philip P. Treier, Micheal S. Lynch | 2011-09-06 |
| 7799219 | Filter and method of making | Craig Bishop | 2010-09-21 |
| 7794556 | Filter and method of making | Philip P. Treier, Michael S. Lynch | 2010-09-14 |
| 7419525 | Filter and method of making | Robert L. Smith | 2008-09-02 |
| 6989104 | Fuel filter with restriction indicator, and method of using same | Darryl V. Logan | 2006-01-24 |
| 6349836 | Wing tapping plate for spin-on filters | Brian J. Langsdorf, Brian Borger, Curt Schroeder | 2002-02-26 |
| 6264833 | Coolant filter assembly for a vehicle | Brian J. Langsdorf, Allen B. Wright | 2001-07-24 |
| 6202859 | Jseam tapping plate with gasket groove for spin-on filter assemblies | Brian J. Langsdorf, Richard R. Berkey | 2001-03-20 |
| 6155431 | Filter assembly | Brian J. Langsdorf, Richard R. Berkey | 2000-12-05 |