Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5452039 | Method and apparatus for calculating the area of moving sheet material useful in photographic development | Emiel Michiels, Jan Claes | 1995-09-19 |
| 5448325 | Photographic development apparatus | Bartholomeus Verlinden, Jan Claes | 1995-09-05 |
| 5133846 | Silver recovery device | Marc De Niel, Herman M. Engels, Dirk De Ruijter, Bartolomeus J. Verlinden, Benedictus Jansen | 1992-07-28 |