Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5340692 | Image receiving material with nacreous pigment for producing contone images according to the silver salt diffusion transfer process | Leon L. Vermeulen | 1994-08-23 |
| 5213648 | Method of producing a tamper-proof laminate and product obtained thereby | Leon L. Vermeulen | 1993-05-25 |
| 5200295 | Method for the production of a silver image | Leon L. Vermeulen, Jean-Marie Dewanckele | 1993-04-06 |
| 5194347 | Image-receiving material comprising subbed polycarbonate or polypropylene | Leon L. Vermeulen | 1993-03-16 |
| 5158641 | Heat-laminating apparatus | Leon L. Vermeulen, Karel L. De Clerck | 1992-10-27 |
| 5043245 | Process for the production of a laminated article | Leon L. Vermeulen, Piet Kok, Jean-Marie Dewanckele | 1991-08-27 |
| 5004659 | Dye image receiving material | Leon L. Vermeulen, Willy P. De Smedt, Ludovicus H. Vervloet | 1991-04-02 |
| 4992130 | Process for the production of a laminate | Leon L. Vermeulen | 1991-02-12 |