Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4356249 | Timing layers and auxiliary neutralizing layer for color transfer assemblages containing positive-working redox dye-releasers | Edward Weissberger | 1982-10-26 |
| 4317892 | Barrier layer between reactants in photographic products comprising a mixture of vinylidene chloride terpolymer and polymeric carboxy-ester-lactone | — | 1982-03-02 |