Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6384314 | Solar cell system and method of establishing the system | — | 2002-05-07 |
| 5893251 | Lamella or panel element | — | 1999-04-13 |
| 5642564 | Method of joining stiff plate profile members into broad lamellae or panels | — | 1997-07-01 |
| 4186297 | Sunlight calculator | Paul Owner-Petersen | 1980-01-29 |