Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879209 | Photographic proteinaceous layers comprising dextran derivatives | Daniel M. Timmerman, Hubert Vandenabeele, Jacques L. Vervecken | 1989-11-07 |
| 4820613 | Photographic surface layers comprising dextran derivatives | Hubert Vandenabeele, Jacques L. Vervecken, Daniel M. Timmerman | 1989-04-11 |