Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9184309 | Solar module | Hermann Calwer, Walter Stetter, Helmut Vogt | 2015-11-10 |
| 9097442 | Made to elements capable of collecting light | Hans-Werner Kuster, Franz Karg, Walter Stetter, Robert B. Gass | 2015-08-04 |