Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7615987 | Device for determining electrical variables | Gerhard Koelle, Stephan Mazingue-Desailly | 2009-11-10 |
| 7578710 | Electrical device | Gerhard Koelle, Stephan Mazingue-Desailly, Roland Hellwig | 2009-08-25 |