Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5537993 | Gas ratio control device for anestesia apparatus | Dirk-Stefan Reichert, Götz Kullik, Wolfgang Falb, Thorsten Haase | 1996-07-23 |
| 4972831 | Gas ratio controlling device for anesthetic appliances | Tronje von dem Hagen, Carl F. Wallroth | 1990-11-27 |