Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6978774 | Emission control valve for gas-fueled engines | C. Ross Fisher, David G. Fisher, Kristian W. Yates | 2005-12-27 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6978774 | Emission control valve for gas-fueled engines | C. Ross Fisher, David G. Fisher, Kristian W. Yates | 2005-12-27 |