Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4480025 | Water reservoir layers in bleach-fix sheets | Hao-Jan Chang, Gerhard Popp | 1984-10-30 |
| 4357392 | Coversheet for color transfer assemblages | Kenneth J. Reed, Gerald L. Ducharme | 1982-11-02 |
| 4314020 | Color transfers assemblages with two timing layers and a neutralizing layer | Kenneth J. Reed, Gerald L. Ducharme | 1982-02-02 |
| 4256826 | Bleach-fix sheets | Gerhard Popp, Keith H. Stephen | 1981-03-17 |