Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11342142 | Shield element for a vacuum interrupter | Frank Graskowski, Christian Stiehler | 2022-05-24 |
| 11289292 | Overpressure-resistant vacuum interrupter tube | Frank Graskowski, Andreas Lawall, Christian Stiehler | 2022-03-29 |