Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11600887 | Pressure relief element, pressure relief device and battery | Ralf Joswig, Martin Wiegmann, Helge Brenner, Markus Hoh | 2023-03-07 |
| 11239528 | Pressure relief element, pressure relief device and battery | Ralf Joswig, Martin Wiegmann, Helge Brenner, Markus Hoh | 2022-02-01 |
| 10741806 | Pressure relief element, pressure relief device and battery | Ralf Joswig, Martin Wiegmann, Helge Brenner, Markus Hoh | 2020-08-11 |
| 9871235 | Pressure relief element, pressure relief device and battery | Ralf Joswig, Martin Wiegmann, Helge Brenner, Markus Hoh | 2018-01-16 |