Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5946914 | Master cylinder reservoir retention means | Thad A. Nevitt | 1999-09-07 |
| 5329769 | Master cylinder and brake booster arrangement for a brake system | Robert K. Wilson | 1994-07-19 |
| 5313796 | Remote compensation valves for a master cylinder in a brake system | Robert K. Wilson | 1994-05-24 |
| 5279125 | Master cylinder with caging means to secure return spring limiting stud | Hugh E. Keyes, Robert K. Wilson | 1994-01-18 |
| 5214917 | Center valve master cylinder with self-adjusting compensation center valve | Robert K. Wilson | 1993-06-01 |
| 5207062 | Center valve master cylinder with adjustable caged primary spring | Robert K. Wilson | 1993-05-04 |
| 5161375 | Spring caging for a master cylinder | Robert K. Wilson | 1992-11-10 |
| 5144976 | Vented screw-in proportioning valve | — | 1992-09-08 |
| 5136847 | Cap for a reservoir of a master cylinder | Richard A. Zander | 1992-08-11 |
| 5046313 | Master cylinder with fluid level and pressure failure detection | William F. Dillon, Jr., Robert F. Gaiser, Richard A. Zander | 1991-09-10 |
| 5016442 | Master cylinder with fluid level and pressure failure detector | Richard A. Zander, Robert F. Gaiser | 1991-05-21 |
| 4995676 | Positioning ring for a hydraulically operated warning device | Richard A. Zander, Robert F. Gaiser | 1991-02-26 |
| 4929033 | Primary and secondary pressure-balanced proportioning valve | Richard A. Zander, Robert F. Gaiser, William F. Dillon, Jr. | 1990-05-29 |
| 4908522 | Pressure-balanced proportioning valve with vent-controlled bypass | Robert F. Gaiser, John E. Steer | 1990-03-13 |
| 4903387 | Method for making a proportioning valve having a unitary poppet valve assembly | John E. Steer, Richard A. Zander | 1990-02-27 |
| 4843820 | Brake system in-line fast fill valve | Robert F. Gaiser | 1989-07-04 |
| 4821519 | Primary pressure-balanced proportioning valve | Robert F. Gaiser, John E. Steer | 1989-04-18 |
| 4815292 | Multi-part primary pressure-balanced proportioning valve with brake pressure failure switch | Robert F. Gaiser, William F. Dillon, Jr. | 1989-03-28 |
| 4785847 | Unitary poppet valve assembly for a proportioning valve | John E. Steer, Richard A. Zander | 1988-11-22 |
| 4559781 | Master cylinder | John E. Steer | 1985-12-24 |
| 4503677 | Master cylinder | Richard A. Zander | 1985-03-12 |
| 4407121 | Master cylinder | — | 1983-10-04 |