Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687785 | Venetian blind slat | Andreas Erber | 1997-11-18 |
| 5566737 | Louverable roller blind | — | 1996-10-22 |
| 5188161 | Louverable rolling shutter | — | 1993-02-23 |
| 4715421 | Roller shutter with jalousie-type louvers | — | 1987-12-29 |