Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5084227 | Process of cooling a heated polymer film | Jan Keyzer, Walter J. Rens, Patrick R. Van Put | 1992-01-28 |
| 5028691 | Process of cooling a heated polyethylene terephthalate film | Jan K. De Keyzer, Walter J. Rens | 1991-07-02 |
| 4994214 | Process for controlling the curl of photographic film | Marc P. Stevens | 1991-02-19 |
| 4892689 | Process for making curled photographic film | Jan Baptist Van Cappellen, Luc M. De Groot, Daniel G. Vandenbrande, Jan K. De Keyzer | 1990-01-09 |