Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9604167 | Multistage high capacity and depth coalescing media system | Peter Popoff | 2017-03-28 |
| 8034240 | Coalescing element | Cheryl M. Reiland | 2011-10-11 |
| 6174438 | Dual pass fuel filter assembly and element therefor | David H. Hodgkins | 2001-01-16 |
| 6171491 | Fuel filter assembly with standpipe having valve element | Peter Popoff, David H. Hodgkins, Michael D. Clausen, Russell D. Jensen, Victor A. Oelschlaegel | 2001-01-09 |
| 6113781 | Fuel filter with dual flow | Peter Popoff, David H. Hodgkins, Michael D. Clausen, Russell D. Jensen, Victor A. Oelschlaegel | 2000-09-05 |
| 6068762 | Reusable oil filter assembly | Michael D. Clausen | 2000-05-30 |
| 6053334 | Fuel filter with valve device | Peter Popoff, David H. Hodgkins, Michael D. Clausen, Russell D. Jensen, Victor A. Oelschlaegel | 2000-04-25 |
| 5904844 | Fuel filter element | — | 1999-05-18 |
| 5858227 | Fuel filter assembly with in-line valve | Michael D. Clausen | 1999-01-12 |
| 5670042 | Fuel filter assembly with replaceable element having integral cover | Michael D. Clausen | 1997-09-23 |
| 5645718 | Reversible filter element | Steven D. Hardison | 1997-07-08 |
| 5643446 | Fuel filter and priming pump | Michael D. Clausen, Russell D. Jensen | 1997-07-01 |
| 5622623 | Fuel filter element | — | 1997-04-22 |
| 5547572 | Fuel Filter | — | 1996-08-20 |
| 5458767 | Fuel filter assembly with dual filter media and by-pass device | — | 1995-10-17 |
| 5362389 | Fuel filter assembly with reversible element | Steven D. Hardison | 1994-11-08 |
| 5244571 | Fuel filter assembly with heater | John F. Church, Kenneth N. Wynne, Darwin L. Brooks, Peter Popoff | 1993-09-14 |
| 5042447 | Thermostatically controlled fuel heater and cooler | — | 1991-08-27 |
| 5036825 | Compact high efficiency fuel heater with integral thermostatic control | — | 1991-08-06 |
| 4997555 | Fuel filter assembly with heater | John F. Church, Ken N. Wynne, Darwin L. Brooks, Peter Popoff | 1991-03-05 |
| 4836923 | Cartridge and cover assembly for fluid filters | Peter Popoff, John F. Church | 1989-06-06 |
| 4740299 | Filter assembly with threaded collection bowl | Peter Popoff, John F. Church | 1988-04-26 |
| 4692245 | Filter assembly with high pressure connection to collection bowl | John F. Church | 1987-09-08 |
| 4668393 | Semipermeable baffle fuel filter | — | 1987-05-26 |
| 4626348 | End cap which will accommodate flow reversal | — | 1986-12-02 |