Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641742 | Liquid filter with separate and calibrated vapor release | Ted Franklin Prater, John Scheuren, John W. Clevenger, Jr., Barry M. Verdegan | 2003-11-04 |
| 6610198 | Liquid filter with change interval indicator | Ted Franklin Prater, John W. Clevenger, Jr., John Scheuren | 2003-08-26 |
| 6533926 | Filter cartridge with concentric circuit rings for data transmission | Charles W. Hawkins, Ismail C. Bagci | 2003-03-18 |