Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883736 | Electrophotographic toner and developer compositions with polymeric alcohol waxes | Thomas R. Hoffend | 1989-11-28 |
| 4837105 | Imaging process with prevention of toner spots | Richard D. Manca, Thomas R. Hoffend | 1989-06-06 |