Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7813061 | Light collecting device | — | 2010-10-12 |
| 7295372 | Day lighting device | — | 2007-11-13 |
| 7013950 | Ventilation device | Torsten Mattsson | 2006-03-21 |
| 6676506 | Method and apparatus for ventilation of foundations | Torsten Mattsson | 2004-01-13 |