Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4386151 | Diffusion transfer film system with protective layer of copper salt, chitosan and selected polyols | Michael Berger, Charles H. Byers | 1983-05-31 |
| 4366227 | Diffusion transfer film unit | Michael Berger | 1982-12-28 |
| 4259115 | Method for forming silver precipitating nuclei | Raymond B. Hanselman, Kenneth G. Scott | 1981-03-31 |