Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8440088 | Priming method for filter | — | 2013-05-14 |
| 8043503 | Filter with quick attachment features | — | 2011-10-25 |
| 7648565 | Filter element | Peter Popoff, Steven D. Hardison | 2010-01-19 |
| 7360658 | Extension and locking assembly for dripless element and container therefore | Steven R. Knight, Martin C. Maxwell | 2008-04-22 |
| 7204370 | Extension and locking assembly for dripless element and container therefore | Steven R. Knight, Martin C. Maxwell | 2007-04-17 |
| 7147110 | Filter assembly with vented filter element | Russell D. Jensen | 2006-12-12 |
| 7086537 | Extension and locking assembly for dripless element, and container therefore | Martin C. Maxwell, Steven R. Knight | 2006-08-08 |
| 6986426 | Extension and locking assembly for dripless element, and container therefore | Steven R. Knight, Martin C. Maxwell | 2006-01-17 |
| 6983851 | Extension and locking assembly for dripless element, and container therefore | Martin C. Maxwell, Steven R. Knight | 2006-01-10 |
| 6837993 | Extension and locking assembly for dripless element, and container therefore | Steven R. Knight, Martin C. Maxwell | 2005-01-04 |
| 6554139 | Extension and locking assembly for dripless element, and container therefore | Martin C. Maxwell, Steven R. Knight | 2003-04-29 |
| 6289879 | Air eliminating return fuel recirculation valve | Steven R. Knight | 2001-09-18 |
| 6171491 | Fuel filter assembly with standpipe having valve element | Peter Popoff, David H. Hodgkins, Russell D. Jensen, Walter H. Stone, Victor A. Oelschlaegel | 2001-01-09 |
| 6113781 | Fuel filter with dual flow | Peter Popoff, David H. Hodgkins, Russell D. Jensen, Walter H. Stone, Victor A. Oelschlaegel | 2000-09-05 |
| 6068762 | Reusable oil filter assembly | Walter H. Stone | 2000-05-30 |
| 6053334 | Fuel filter with valve device | Peter Popoff, David H. Hodgkins, Russell D. Jensen, Walter H. Stone, Victor A. Oelschlaegel | 2000-04-25 |
| 6015492 | Fuel filter assembly with replaceable element | Peter Popoff, David H. Hodgkins, Victor R. Oelschlaegel | 2000-01-18 |
| 5997739 | Fuel/water separator | Kenneth R. Duncan | 1999-12-07 |
| 5860796 | Fuel pump assembly and filter element therefor | — | 1999-01-19 |
| 5858227 | Fuel filter assembly with in-line valve | Walter H. Stone | 1999-01-12 |
| 5770065 | Fuel filter assembly with replacement element | Peter Popoff, David H. Hodgkins, Victor R. Oelschlaegel | 1998-06-23 |
| 5753120 | Tubular filter element having a sealing arrangement with a housing post | Russell D. Jensen | 1998-05-19 |
| 5670042 | Fuel filter assembly with replaceable element having integral cover | Walter H. Stone | 1997-09-23 |
| 5643446 | Fuel filter and priming pump | Russell D. Jensen, Walter H. Stone | 1997-07-01 |
| 5046645 | Syphon package with mechanically attached valve | Richard J. Hagan | 1991-09-10 |