Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4924169 | Current regulator for a battery re-charging circuit | Glenn Shifflet, Herbert C. Johnson | 1990-05-08 |
| 4838077 | Apparatus and method for monitoring the operation of a vehicle drive shaft | Glenn Shifflet, Herbert C. Johnson | 1989-06-13 |