Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6550396 | Guide wheel assembly | Stefan Kummeter, William K. Cooper, Ralf Krause, Jeffrey J. Schwalm | 2003-04-22 |
| 6477963 | Apparatus and method for steering a guideway vehicle | Christian Weule, Ralf Krause, Jeffrey J. Schwalm, William K. Cooper | 2002-11-12 |
| 6431082 | Guide wheel assembly | Stefan Kummeter, William K. Cooper, Ralf Krause, Jeffrey J. Schwalm | 2002-08-13 |