Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6655508 | Disc brake rotor | Robert S. Ballinger, Michael A. Riehle | 2003-12-02 |
| 6454058 | Disc brake rotor | Robert S. Ballinger, Michael A. Riehle | 2002-09-24 |
| 6405839 | Disc brake rotor | Robert S. Ballinger, Michael A. Riehle | 2002-06-18 |
| 6354409 | Brake rotor having thermal symmetry | Robert S. Ballinger | 2002-03-12 |