Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4548194 | Fuel stoker and furnace | Tony L. Schafer, Stephen A. Schafer, Gregory L. Schafer | 1985-10-22 |
| 4454860 | Fuel stoker and furnace | Tony L. Schafer, Stephen A. Schafer, Gregory L. Schafer | 1984-06-19 |
| 4430948 | Fuel stoker and furnace | Tony L. Schafer, Stephen A. Schafer, Gregory L. Schafer | 1984-02-14 |