Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6227521 | Graduated release valve | Ulf Stahmer | 2001-05-08 |
| 5979502 | Spool valve assembly | Ulf Stahmer | 1999-11-09 |
| 5559281 | Test connector for accessing compressed air at test ports of a railroad brake control valve | Albert A. McKay, Stanley J. Pasek, David A. Porteous, Jeffrey D. Reid, Eric G. Smith +2 more | 1996-09-24 |