Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846830 | Cardiac valve prosthesis | Martin Knoch, Helmut Reul | 1989-07-11 |
| 4799930 | Cardiac valve prosthesis | Martin Knoch, Helmut Reul | 1989-01-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846830 | Cardiac valve prosthesis | Martin Knoch, Helmut Reul | 1989-07-11 |
| 4799930 | Cardiac valve prosthesis | Martin Knoch, Helmut Reul | 1989-01-24 |