Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8741138 | Filter with end cap features | — | 2014-06-03 |
| 6146527 | Spin-on filter cartridge with replaceable element | — | 2000-11-14 |
| 6015492 | Fuel filter assembly with replaceable element | Peter Popoff, David H. Hodgkins, Michael D. Clausen | 2000-01-18 |
| 5770065 | Fuel filter assembly with replacement element | Peter Popoff, David H. Hodgkins, Michael D. Clausen | 1998-06-23 |
| 4976285 | Universal self-venting drain valve | John F. Church, J. Donald Emery | 1990-12-11 |
| 4922960 | Self venting drain valve | — | 1990-05-08 |