Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5135525 | Catheter set for continuous spinal anaesthesia | Marie L. Summerer, Hans-Hinrich Witt | 1992-08-04 |
| 4994036 | Catheter set for spinal anaesthesia | Marie L. Summerer, Heinz Wiegel, Hans-Hinrich Witt | 1991-02-19 |