Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5989421 | Bag filter rim system | Scott J. Davis | 1999-11-23 |
| 5569383 | Filter with axially and rotatably movable wiper | Danny K. Kaiser | 1996-10-29 |
| 5527462 | Filter with axially movable wiper | Scott J. Davis | 1996-06-18 |
| 4769136 | Filter unit with linked valve actuators | Ricky McCormick | 1988-09-06 |