Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4525413 | Optical device including birefringent polymer | Howard G. Rogers, Russell Gaudiana, Ronald A. Sahatjian | 1985-06-25 |
| 4521588 | Optical device including birefringent polyhydrazide polymer | Howard G. Rogers, Russell Gaudiana, Ronald A. Sahatjian | 1985-06-04 |
| 4520189 | Optical device including birefringent aromatic amino carboxylic acid polymer | Howard G. Rogers, Russell Gaudiana, Ronald A. Sahatjian | 1985-05-28 |
| 4446305 | Optical device including birefringent polymer | Howard G. Rogers, Russell Gaudiana, Ronald A. Sahatjian | 1984-05-01 |
| 4415648 | Variable density photographic transparencies | Ronald A. Sahatjian | 1983-11-15 |
| 4386216 | Magenta dye developers | Louis Locatell, Jr., Howard G. Rogers, Ronald F. Cieciuch, Charles M. Zepp | 1983-05-31 |
| 4288524 | Image-receiving elements utilizing lamellar pigment materials | Howard G. Rogers | 1981-09-08 |
| 4279983 | Silver image stabilization | Mara O. Nestle | 1981-07-21 |
| 4269916 | Photographic prints utilizing lamellar pigment materials | Howard G. Rogers | 1981-05-26 |
| 4264701 | Magenta dye developers | Louis Locatell, Jr., Howard G. Rogers, Ronald F. Cieciuch, Charles M. Zepp | 1981-04-28 |
| 4216018 | Photographic products and processes employing lamellar pigments | Howard G. Rogers | 1980-08-05 |