Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5964800 | Methods for rotating a prosthetic heart valve within a sewing ring | Robert Sparks, David W. Wieting | 1999-10-12 |
| 5716398 | Mitral valve rotator assembly | Robert Sparks, David W. Wieting | 1998-02-10 |