Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4679546 | Implantable shut-off device | Ernst Stefan Christiaan Van Waalwijk Van Doorn, Franciscus J.P. De Vries | 1987-07-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4679546 | Implantable shut-off device | Ernst Stefan Christiaan Van Waalwijk Van Doorn, Franciscus J.P. De Vries | 1987-07-14 |