Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839267 | Colour photographic motion picture element | Paul L. Van Meerbeeck | 1989-06-13 |
| 4837168 | Immunoassay using colorable latex particles | Nikolaas C. de Jaeger, Marcus J. M. Noppe, Frank J. Konings | 1989-06-06 |
| 4830941 | Process for the manufacture of a relief element | Raymond Roosen, Marcellus H. De Meyer | 1989-05-16 |
| 4822729 | 2,5-Diacylaminophenol-type color couplers and photographic elements containing same | Paul L. Van Meerbeeck | 1989-04-18 |