Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4564808 | Direct determination of quantum efficiency of semiconducting films | Joseph J. Hanak | 1986-01-14 |
| 4475795 | Electrochromic films having improved etch resistance | Marshall Leibowitz, Richard S. Crandall | 1984-10-09 |
| 4233339 | Method for making electrochromic films having improved etch resistance | Marshall Leibowitz, Richard S. Crandall | 1980-11-11 |