Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5025628 | Master cylinder reservoir diaphragm venting arrangement | John C. Layman | 1991-06-25 |
| 5022713 | Venting master cylinder reservoir diaphragm | John R. Coleman | 1991-06-11 |
| 5018353 | Center compensating master cylinder | — | 1991-05-28 |