Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6557952 | Remote control unit for electric wheel brake controller | Charles L. Robertson | 2003-05-06 |
| D404365 | Electronic trailer brake controller | Charles L. Robertson, Michael A. Hedding | 1999-01-19 |