Issued Patents All Time
Showing 76–89 of 89 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5063125 | Electrically conductive layer for electrical devices | Huoy-Jen Yuh, John W. Spiewak, Constance J. Thornton, John F. Yanus, William W. Limburg | 1991-11-05 |
| 5039598 | Ionographic imaging system | Dennis A. Abramsohn, John A. Frank, Brendan C. Casey, Donald S. Sypula | 1991-08-13 |
| 4988597 | Conductive and blocking layers for electrophotographic imaging members | John W. Spiewak, Huoy-Jen Yuh, Constance J. Thornton, Dennis A. Abramsohn, Deborah J. Nichol-Landry | 1991-01-29 |
| 4952293 | Polymer electrodeposition process | Donald S. Sypula | 1990-08-28 |
| 4750018 | Pre-transfer copy sheet cleaning apparatus | Arthur M. Gooray, Dennis A. Abramsohn, Stephen Borostyan | 1988-06-07 |
| 4747992 | Process for fabricating a belt | Donald S. Sypula, Merlin E. Scharfe, Dennis A. Abramsohn, Paul J. Brach, Clifford H. Griffiths +6 more | 1988-05-31 |
| 4711833 | Powder coating process for seamless substrates | T. Brian McAneney, Rafik O. Loutfy, Deborah J. Nichol-Landry, Donald S. Sypula | 1987-12-08 |
| 4600677 | Organoalkoxysilane carrier coatings | Thomas R. Hoffend | 1986-07-15 |
| 4562132 | Photoresponsive imaging members containing electron transport overcoatings | Beng S. Ong, Barkev Keoshkerian, Dasarao K. Murti | 1985-12-31 |
| 4515882 | Overcoated electrophotographic imaging system | Donald S. Sypula, Dennis A. Abramsohn, Martin A. Abkowitz, Merlin E. Scharfe | 1985-05-07 |
| 4294904 | Inductive development materials for a magnetic development process | — | 1981-10-13 |
| 4265995 | Carrier core surface treatment | — | 1981-05-05 |
| 4233387 | Electrophotographic carrier powder coated by resin dry-mixing process | Timothy F. Johnson, David W. Walters, Steven R. Perez | 1980-11-11 |
| 4197211 | Liquid electrophotographic developers | Alan B. Amidon, Robert M. Ferguson | 1980-04-08 |