Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821719 | Process for producing a deformed image without significant image degradation | Ly Cuong, Markus Geiger, Arno Schmuck | 2004-11-23 |
| 6818390 | Deformable color photographic silver halide material | Ly Cuong, Markus Geiger, Arno Schmuck | 2004-11-16 |
| 5880760 | Method and device for printing information on substrates having security features | Guido Desie, Michel Boulonne | 1999-03-09 |
| 5824447 | Apparatus for security printing using toner particles | Serge Tavernier, Dirk Broddin, Stefaan De Meutter, Michel Boulonne | 1998-10-20 |
| 5753352 | Laminated security document containing fluorescent dye giving light piping | Luc Vanmaele, Wilhelmus Janssens | 1998-05-19 |
| 5340692 | Image receiving material with nacreous pigment for producing contone images according to the silver salt diffusion transfer process | Robert S. Pauwels | 1994-08-23 |
| 5213648 | Method of producing a tamper-proof laminate and product obtained thereby | Robert S. Pauwels | 1993-05-25 |
| 5200295 | Method for the production of a silver image | Robert S. Pauwels, Jean-Marie Dewanckele | 1993-04-06 |
| 5194347 | Image-receiving material comprising subbed polycarbonate or polypropylene | Robert S. Pauwels | 1993-03-16 |
| 5158641 | Heat-laminating apparatus | Robert S. Pauwels, Karel L. De Clerck | 1992-10-27 |
| 5043245 | Process for the production of a laminated article | Robert S. Pauwels, Piet Kok, Jean-Marie Dewanckele | 1991-08-27 |
| 5004659 | Dye image receiving material | Robert S. Pauwels, Willy P. De Smedt, Ludovicus H. Vervloet | 1991-04-02 |
| 4992130 | Process for the production of a laminate | Robert S. Pauwels | 1991-02-12 |
| 4908286 | Image-receiving material for use in diffusion transfer reversal | Ludovicus H. Vervloet, Willy P. De Smedt, Piet Kok | 1990-03-13 |
| 4902593 | Dye image receiving material | Ludovicus H. Vervloet, Willy P. De Smedt, Piet Kok | 1990-02-20 |
| 4859565 | Diffusion transfer reversal process | Rene De Keyzer, Robert J. Pollet | 1989-08-22 |
| 4808509 | Diffusion transfer imaging method and receptor sheet for making personal identification documents | Ludovicus H. Vervloet, Willy P. De Smedt | 1989-02-28 |
| 4772536 | Dye image receiving material | Ludovicus H. Vervloet, Willy P. De Smedt | 1988-09-20 |
| 4762759 | Image-receiving material with siloxane, colloidal silica and gelatin for silver complex diffusion transfer | Ludovicus H. Vervloet, Willy P. De Smedt, Piet Kok | 1988-08-09 |
| 4720447 | Silver salt diffusion transfer reversal process | Rene De Keyzer, Robert J. Pollet | 1988-01-19 |
| 4686170 | Photographic silver complex diffusion transfer reversal process under yellow safelight | Theofiel H. Ghys, Willy P. De Smedt, Ludovicus H. Vervloet, Paul Callant | 1987-08-11 |
| 4635133 | Photographic method for the production of documents | Pierre H. Nys | 1987-01-06 |
| 4357407 | Production of reverse reading positive images of a straight reading original | Albert Lucien Poot, Jozef Willy Van den Houte | 1982-11-02 |
| 4242436 | Photographic material for continuous tone reproduction | Ludovicus M. Mertens | 1980-12-30 |
| 4224402 | Photographic material for use in the silver complex diffusion transfer process | Ludovicus M. Mertens | 1980-09-23 |