Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7989704 | Electric insulator and a method for the production thereof | Yannick Kieffel | 2011-08-02 |
| 7989726 | Electrical device containing insulating gas under pressure and including a composite insulator provided with a window for observing contacts | Christian Lindner, Yannick Kieffel | 2011-08-02 |