Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9243352 | Spinning nozzle and spinning station of an air-jet spinning machine fitted therewith | Christian Griesshammer, Petr Haska, Dorothee Betz | 2016-01-26 |
| 8607540 | Roving machine for producing a roving | Dorothee Betz | 2013-12-17 |