Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9156529 | Method of making a lithographic printing plate | Jan Sinnesael, Jens Lenaerts | 2015-10-13 |
| 6130023 | Method for making lithographic printing plates according to the silver salt diffusion transfer process | Paul Coppens, Eric Hoes, Brigitte Parmentier | 2000-10-10 |
| 5693448 | Method for making an offset printing plate according to the silver salt diffusion transfer process | Paul Coppens, Eric Hoes, Ludo Van Rompuy | 1997-12-02 |
| 5635330 | Finisher at 30.degree.-60.degree. C. in method for making an offset printing plate according to the silver salt diffusion transfer process | Paul Coppens | 1997-06-03 |
| 5518866 | Method for making an offset printing plate according to the silver salt diffusion transfer process | Paul Coppens | 1996-05-21 |
| 5508142 | Imaging element and method for making lithographic printing plate according to the silver salt diffusion transfer process | Paul Coppens, Eric Hoes | 1996-04-16 |
| 5496679 | Imaging element and method for making lithographic printing plates according to the silver salt diffusion transfer process | Guido Hauquier, Willem Cortens, Paul Coppens | 1996-03-05 |
| 5449585 | Method for making lithographic printing plates according to the silver salt diffusion transfer process | Paul Coppens, Eric Hoes | 1995-09-12 |
| 5445914 | Method for making a lithographic offset plate by the silver salt diffusion transfer process | Paul Coppens, Augustin Meisters | 1995-08-29 |
| 5405729 | Method for making a lithographic offset plate by the silver salt diffusion transfer process | Paul Coppens, Augustin Meisters, Jean-Pierre Tahon | 1995-04-11 |
| 5362602 | Method of making lithographic aluminum offset printing plates | Paul Coppens, Joan Vermeersch, Luc Leenders, Eric Hoes, Eddie Daems | 1994-11-08 |
| 5273858 | Method of making lithographic aluminum offset printing plates | Paul Coppens, Joan Vermeersch, Luc Leenders, Eric Hoes, Eddie Daems | 1993-12-28 |
| 5213920 | Method for obtaining litographic printing plates by electrophotographic imaging | Paul Coppens, Serge Tavernier, Paul F. Sterckx | 1993-05-25 |
| 5213943 | Lithographic aluminum offset printing plate made according to the DTR-process | Paul Coppens, Luc Leenders, Ronald Schuerwegen | 1993-05-25 |
| 5068165 | Lithographic aluminum offset printing plate made according to the DTR-process | Paul Coppens, Luc Leenders, Ronald Schuerwegen | 1991-11-26 |
| 5004659 | Dye image receiving material | Leon L. Vermeulen, Robert S. Pauwels, Willy P. De Smedt | 1991-04-02 |
| 4908286 | Image-receiving material for use in diffusion transfer reversal | Willy P. De Smedt, Leon L. Vermeulen, Piet Kok | 1990-03-13 |
| 4902593 | Dye image receiving material | Leon L. Vermeulen, Willy P. De Smedt, Piet Kok | 1990-02-20 |
| 4808509 | Diffusion transfer imaging method and receptor sheet for making personal identification documents | Willy P. De Smedt, Leon L. Vermeulen | 1989-02-28 |
| 4772536 | Dye image receiving material | Leon L. Vermeulen, Willy P. De Smedt | 1988-09-20 |
| 4762759 | Image-receiving material with siloxane, colloidal silica and gelatin for silver complex diffusion transfer | Leon L. Vermeulen, Willy P. De Smedt, Piet Kok | 1988-08-09 |
| 4686170 | Photographic silver complex diffusion transfer reversal process under yellow safelight | Leon L. Vermeulen, Theofiel H. Ghys, Willy P. De Smedt, Paul Callant | 1987-08-11 |