Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4630606 | Device for determining and evaluating the pressure in a balloon sleeve of a closed tracheal tube | Hilko Weerda | 1986-12-23 |
| 4565194 | Tracheal tube for artificial respiration | Hilko Weerda, Gerhard Meuret | 1986-01-21 |
| 4182151 | Clearing of retained liquids from recesses in thin walled members | — | 1980-01-08 |