Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841962 | Collagen matrix/polymer film composite dressing | Richard A. Berg, Frederick H. Silver, John D'Antonio | 1989-06-27 |
| 4837285 | Collagen matrix beads for soft tissue repair | Richard A. Berg, Frederick H. Silver | 1989-06-06 |