Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11605317 | Portable sign frame | — | 2023-03-14 |
| 11427977 | Barricade | Daniel Calby, Nabil Elhassan | 2022-08-30 |
| 6056168 | Fuel tank for a trailer | — | 2000-05-02 |
| 4228412 | Electrical switching apparatus and energizing circuits therefor | Robert J. Dalley, George S. Parmenter | 1980-10-14 |
| 4217634 | Voltage and current sources | Robert J. Dalley | 1980-08-12 |