Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4415068 | Disc brake and antirattle spring therefor | Bert A. Gumkowski | 1983-11-15 |
| 4410068 | Disc brake and anti-rattle spring therefor | Peter Schreiner, Mark J. Cybulski | 1983-10-18 |
| 4410069 | Disc brake | Peter Schreiner, Bert A. Gumkowski | 1983-10-18 |