Issued Patents All Time
Showing 51–60 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7431575 | Auto valve priming pump | Charles W. Hawkins, Ricky England, Kevin C. South, Jeffrey B. Sharp, Mark Johnson | 2008-10-07 |
| 7297256 | Pressure gradient dosing system for fluid supply | Ted S. Loftis, David L. Brisk, Barry M. Verdegan, Harold R. Martin, Peter K. Herman +1 more | 2007-11-20 |
| 7156991 | Liquid additive slow-release apparatus driven by a filter pressure gradient | Peter K. Herman, Harold R. Martin | 2007-01-02 |
| 7153422 | Liquid additive slow-release apparatus driven by a filter pressure gradient | Peter K. Herman, Harold R. Martin, Abby True-Dahl, Scott Towsley, Zemin Jiang | 2006-12-26 |
| 6793615 | Internal seal for a disposable centrifuge | Kevin C. South, Peter K. Herman, Hendrik N. Amirkhanian | 2004-09-21 |
| 6795646 | Fuel heater with cam removal feature | Mark T. Wieczorek | 2004-09-21 |
| 6579220 | Disposable, self-driven centrifuge | Peter K. Herman, Byron A. Pardue, Mike Conrad, Mike Yost, Richard Jensen +1 more | 2003-06-17 |
| 6533926 | Filter cartridge with concentric circuit rings for data transmission | Charles W. Hawkins, Zemin Jiang | 2003-03-18 |
| 6361684 | Integrated fuel pump and fuel filter with fuel-water separation | Charles W. Hawkins, Zemin Jiang | 2002-03-26 |
| 6270659 | Fuel filtering system for an engine | Byron A. Pardue, Paul D. Miller, Charles W. Hawkins, Wayne N. Harrington | 2001-08-07 |