Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863856 | Weighted collagen microsponge for immobilizing bioactive materials | Robert C. Dean, Jr., Frederick H. Silver, Richard A. Berg, Philip G. Phillips, Peter W. Runstadler, Jr. | 1989-09-05 |