Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688959 | Photographic color elements | Raphael K. Van Poucke, Christian Charles Van den Sande | 1997-11-18 |
| 5030544 | Photographic elements comprising thiazolyl couplers capable of forming infrared-absorbing dyes for integral sound track | Raphael K. Van Poucke, Christian Charles Van den Sande | 1991-07-09 |