Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5555498 | Circuit and method for interfacing vehicle controller and diagnostic test instrument | Charles J. Berra, John R. Boldt, Joseph Krebs | 1996-09-10 |
| 5278759 | System and method for reprogramming vehicle computers | Charles J. Berra | 1994-01-11 |