Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6655752 | Device for activating trailer electric wheel brakes | Charles L. Robertson | 2003-12-02 |
| 6367588 | Deceleration sensor for an electric brake controller | Charles L. Robertson | 2002-04-09 |
| 6325466 | Device for activating trailer electric wheel brakes | Charles L. Robertson | 2001-12-04 |
| 6039410 | Electronic trailer brake controller | Charles L. Robertson, Michael C. McGrath | 2000-03-21 |
| 5949147 | Short circuit safety audible monitor | Michael C. McGrath, Charles L. Robertson | 1999-09-07 |
| D404365 | Electronic trailer brake controller | Charles L. Robertson, William J. Lewandowski | 1999-01-19 |
| 5800025 | Electronic trailer brake controller with sleep mode | Michael C. McGrath, Wayne M. Groleau, Brian Stockford, David R. Sullivan | 1998-09-01 |
| 5785393 | Electronic trailer brake controller with pendulum zero adjust | Michael C. McGrath, Wayne M. Groleau, Brian Stockford, David R. Sullivan | 1998-07-28 |
| 5782542 | Electronic trailer brake controller with remote manual control | Michael C. McGrath, Wayne M. Groleau, Brian Stockford, David R. Sullivan | 1998-07-21 |
| 5620236 | Electronic trailer brake controller | Michael C. McGrath, Wayne M. Groleau, Brian Stockford, David R. Sullivan | 1997-04-15 |
| 5615930 | Electronic trailer brake controller | Michael C. McGrath | 1997-04-01 |
| D362659 | Electronic trailer brake controller | Matthew J. Knox | 1995-09-26 |