Issued Patents All Time
Showing 1–25 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7442292 | Liquid visual display | David Ferreira, Michael J. Williams | 2008-10-28 |
| 7412896 | Filter change indicator | Stephen Vardion, Michael J. Williams | 2008-08-19 |
| 7360433 | Filter change indicator | Stephen Vardion, Michael J. Williams | 2008-04-22 |
| 7137303 | Filter change indicator | Stephen Vardion, Michael J. Williams | 2006-11-21 |
| 6911143 | Base receptacle for filter cartridge incorporating a peripheral compatibility matrix | — | 2005-06-28 |
| 6881334 | Eccentric interference retention system for a filter cartridge | — | 2005-04-19 |
| 6863811 | Filter cartridge incorporating a peripheral compatibility matrix | — | 2005-03-08 |
| 6843911 | Base receptacle with fixed retainer for filter cartridge incorporating a peripheral compatibility matrix | Michael J. Williams | 2005-01-18 |
| 6755308 | Filter cartridge with grommet spring | Michael J. Williams | 2004-06-29 |
| 6740234 | Key track system | Michael J. Williams, Thomas Tornatore | 2004-05-25 |
| D484568 | Filter cartridge | Michael J. Williams | 2003-12-30 |
| D479300 | Filter cartridge | Michael J. Williams | 2003-09-02 |
| 6506302 | Key system for ecological filter cartridge and element | — | 2003-01-14 |
| 6500335 | Filter system base module with self-locking cartridge retainer | Michael J. Williams | 2002-12-31 |
| 6471070 | Ecological fuel filter cartridge and element | — | 2002-10-29 |
| 6364121 | Filter cartridge with grommet spring | Michael J. Williams | 2002-04-02 |
| 6187188 | Filter cartridge retention system | Michael J. Williams | 2001-02-13 |
| D435631 | Filter cartridge | Michael J. Williams | 2000-12-26 |
| 6125822 | Two stage pressure relief valve | Michael J. O'Brien | 2000-10-03 |
| 6048455 | Filter assembly with conformal cartridge support structure | — | 2000-04-11 |
| 6019890 | Fuel filter with hand primer | Michael J. Williams, Larry Cote | 2000-02-01 |
| 5985144 | Reverse flow cartridge | Michael J. Williams, Larry Cote | 1999-11-16 |
| 5938921 | Water baffle for filter cartridge | Michael J. Williams | 1999-08-17 |
| 5915926 | Lift pump for filter module | Michael J. Williams | 1999-06-29 |
| 5887573 | Fuel filter with cold start circuit | Michael J. Williams, Richard E. Atwood | 1999-03-30 |