Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865965 | Light sensitive emulsion and element containing a cyclic ether compound and process for using same | Gerard A. Friour, Christian Paris, Marcel L. P. Riveccie | 1989-09-12 |
| 4810626 | Silver halide photosensitive materials containing thiourea and analogue compounds | George J. Burgmaier | 1989-03-07 |