Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834725 | Catheter for percutaneous gastrostomy | — | 1989-05-30 |
| 4811928 | Control clamp for infusion hoses | Wolfgang Wolkenstrorfer, Wolfgang Hofmann, Walter Prell | 1989-03-14 |
| 4798593 | Stiffening of probes | — | 1989-01-17 |