Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5952142 | Azine-containing photoconductive element | Petrus J. A. M. Derks, Maria Petronella Henrica van Horck | 1999-09-14 |
| 5330865 | Multi-layered electrophotographic element having a mixture of perylene pigments | Gerardus R. B. Leus, Clemens T. Weijkamp | 1994-07-19 |