Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11583644 | Spring bridge for a spring bridge breathing bag plate system of a closed-circuit respirator, spring bridge breathing bag plate system as well as closed-circuit respirator | Christian Wilhelm, Sören KIRMSE | 2023-02-21 |
| 11324975 | Breathing tube for a respirator and respirator | Christian Ulbrich | 2022-05-10 |