Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34238 | Fuel tank cap with pressure/thermal relief | Zdenek Gabrlik, John Michael Morris, Timothy L. Oliphant, Charles J. Green | 1993-05-04 |
| 4732188 | Fuel tank cap with pressure/thermal relief | Zdenek Gabrlik, John Michael Morris, Timothy L. Oliphant | 1988-03-22 |