Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803417 | Vehicle battery discharging indicator | Van V. Riesberg, Jr. | 1989-02-07 |
| 4731601 | Cranking system performance indicator | Van V. Reisberg, Jr., Robert Mackenzie | 1988-03-15 |
| 4714357 | Segmental bearing shoe | Ronald W. Groth | 1987-12-22 |
| 4516066 | Dual-voltage battery charging system | — | 1985-05-07 |
| 4492912 | Dual voltage motor vehicle electrical system | — | 1985-01-08 |
| 4345197 | Vehicle battery charging system | Ellis G. Wheadon | 1982-08-17 |