Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4573997 | Right ventricular assist device | William S. Pierce, James H. Donachy | 1986-03-04 |
| 4364127 | Trileaflet type prosthetic heart valve | William S. Pierce, James H. Donachy | 1982-12-21 |