Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4759759 | Bubble heart valve | David K. Walker, Denton E. Hewgill, Lawrence N. Scotten, Roberto Racca | 1988-07-26 |
| 4340977 | Catenary mitral valve replacement | Lawrence N. Scotten, David K. Walker | 1982-07-27 |