Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4364127 | Trileaflet type prosthetic heart valve | William S. Pierce, Craig B. Wisman | 1982-12-21 |
| 4312920 | Polymer alloy blood compatible surface | William S. Pierce | 1982-01-26 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4364127 | Trileaflet type prosthetic heart valve | William S. Pierce, Craig B. Wisman | 1982-12-21 |
| 4312920 | Polymer alloy blood compatible surface | William S. Pierce | 1982-01-26 |