Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878494 | Cardio-valve assist unit and method for performing cardio-valve replacement surgery | James L. Phillips, Dale W. Richardson | 1989-11-07 |
| 4834097 | Cardio-valve assist unit and method for performing cardio-valve replacement surgery | James L. Phillips, Dale W. Richardson | 1989-05-30 |