Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9079129 | Filter cartridge with divider | Paul Smith, Kevin J. Rucinski, Alfred Tondreau | 2015-07-14 |
| 7854837 | Filter cartridge with pressure relief valve | Paul Smith, Kevin J. Rucinski, Alfred Tondreau | 2010-12-21 |
| 7615146 | Fluid filter with restrictive filter media for pressure relief | Paul Smith, Kevin J. Rucinski, Alfred Tondreau | 2009-11-10 |
| 7150824 | Method for determining when to replace a filter having a pressure relief valve | Paul Smith, Kevin J. Rucinski, Alfred Tondreau | 2006-12-19 |
| 6841065 | Fluid filter with pressure relief valve | Paul Smith, Kevin J. Rucinski, Alfred Tondreau | 2005-01-11 |
| 6540909 | Fluid filter with pressure relief valve | Paul Smith, Kevin J. Rucinski, Alfred Tondreau | 2003-04-01 |