Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6663193 | Relay valve based accelerated brake pipe application and release system | John P. Condrasky | 2003-12-16 |
| 6520599 | Four port variable load valve weigh system for a brake pipe controlled brake system | John P. Condrasky | 2003-02-18 |