Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8297713 | Full function tractor protection valve | — | 2012-10-30 |
| 7658453 | Service brake relay with integrated quick release valve | — | 2010-02-09 |
| 7204563 | Park brake interlock and trailer brake valve assembly | — | 2007-04-17 |
| 6655750 | Combination inversion and relay or quick release valve assembly | — | 2003-12-02 |
| 6135008 | Piston with lubricant-scraping ring and lubricant return ports | Stephen J. Wood | 2000-10-24 |
| 4710108 | Isolation valve construction | — | 1987-12-01 |
| 4207563 | Gas charged accumulator with failure indicator | — | 1980-06-10 |