Issued Patents All Time
Showing 101–112 of 112 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5139909 | Perinone photoconductive imaging members | Peter M. Kazmaier, Cheng-Kuo Hsiao | 1992-08-18 |
| 5100752 | Processes for the preparation of phthalocyanines for electrophotography | Cheng-Kuo Hsaio, Giuseppa Baranyi, Terry L. Bluhm, James F. Duff, George Liebermann +1 more | 1992-03-31 |
| 4952471 | Quinacridone photoconductor imaging members | Giuseppa Baranyi, Rafik O. Loutfy | 1990-08-28 |
| 4952472 | Indigoid photoconductor imaging members | Giuseppa Baranyi, Rafik O. Loutfy | 1990-08-28 |
| 4937164 | Thionated perylene photoconductive imaging members for electrophotography | James M. Duff, Cheng-Kuo Hsiao, Gordon K. Hamer, Rafik O. Loutfy | 1990-06-26 |
| 4925760 | Pyranthrone photoconductor imaging members | Giuseppa Baranyi, Rafik O. Loutfy, Zoran D. Popovic | 1990-05-15 |
| 4882254 | Photoconductive imaging members with mixtures of photogenerator pigment compositions | Rafik O. Loutfy, George Liebermann, Alan John Toth, Cheng-Kuo Hsiao, Kathleen M. Carmichael +1 more | 1989-11-21 |
| 4808506 | Photoconductive imaging members with imidazole perinones | Rafik O. Loutfy, Peter M. Kazmaier, Richard A. Burt | 1989-02-28 |
| 4792508 | Electrophotographic photoconductive imaging members with cis, trans perylene isomers | Peter M. Kazmaier, Richard A. Burt, Cheng-Kuo Hsiao | 1988-12-20 |
| 4771133 | Phthalocyanine treatment process | George Liebermann, Alan Edward John Toth | 1988-09-13 |
| 4587189 | Photoconductive imaging members with perylene pigment compositions | Rafik O. Loutfy | 1986-05-06 |
| 4555463 | Photoresponsive imaging members with chloroindium phthalocyanine compositions | Rafik O. Loutfy | 1985-11-26 |