Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11101426 | Piezoelectric transformer | Franz Rinner, Pavol Kudela | 2021-08-24 |
| 11011890 | Arrester and method for manufacturing an arrester | — | 2021-05-18 |
| 10944243 | Method for producing an arrester, and arrester | Georg Kügerl, Markus Puff, Robert Hoffmann, Frank Werner | 2021-03-09 |