Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4924169 | Current regulator for a battery re-charging circuit | Herbert C. Johnson, Paul W. Revenaugh | 1990-05-08 |
| 4838077 | Apparatus and method for monitoring the operation of a vehicle drive shaft | Herbert C. Johnson, Paul W. Revenaugh | 1989-06-13 |
| 4382235 | Simulated noise generator | — | 1983-05-03 |