Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D262578 | Combined power failure and flash light with buzzer | Donald L. Rohrs, John J. Collins | 1982-01-05 |
| 4288942 | Aerodynamic device | — | 1981-09-15 |
| D254514 | Combined power failure light and flash light | Donald L. Rohrs, John J. Collins | 1980-03-18 |