Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7252644 | System and methods to overcome gravity-induced dysfunction in extremity paresis | Julius Dewald | 2007-08-07 |
| 4398889 | Flight simulator | Luitzen de Vries | 1983-08-16 |
| 4358959 | Method and device for measuring the parameters of a damped, spring-supported mass | Luitzen de Vries | 1982-11-16 |