Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D315257 | Chair | Willi Hensel, Jurgen Lange | 1991-03-12 |
| D315259 | Chair | Willi Hensel, Jurgen Lange | 1991-03-12 |
| D313705 | Chair | Willi Hensel, Jurgen Lange | 1991-01-15 |
| 4790595 | Chair having seat and back capable of relative tilting | Willi Hensel, Jurgen Lange | 1988-12-13 |