Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10508655 | Blower filter system | Achim Volmer, Stefan FREYHER | 2019-12-17 |
| 10190590 | Battery-operated blower filter system for use in potentially explosive areas | Achim Volmer, Mathias Dehmke, Andreas Sürig | 2019-01-29 |