Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10815726 | Blind assembly and method of attaching a shade material to a winding core of a blind | Adrianus Jacob van't Zelfde | 2020-10-27 |
| 9957751 | Blind assembly and method of attaching a shade material to a winding core of a blind | Adrianus Jacob van't Zelfde | 2018-05-01 |
| 7631682 | Retractable window covering having a length expanding stiffening rod | Franciscus Lamers, Jan Pieter Wetsema | 2009-12-15 |