Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7479307 | Toners and processes thereof | Mary C. Fromm, Grazyna E. Kmiecik-Lawrynowicz, Pinyen Lin, Chieh-Min Cheng | 2009-01-20 |
| 7250238 | Toners and processes thereof | Mary C. Fromm, Grazyna E. Kmiecik-Lawrynowicz, Pinyen Lin, Chieh-Min Cheng | 2007-07-31 |
| 5516612 | Toner and developer compositions and processes thereof | George W. Vianco, Sheau Van Kao | 1996-05-14 |
| 5082758 | Toner and developer compositions with charge enhancing additives | Thomas R. Hoffend, Clifford O. Eddy | 1992-01-21 |
| 4490455 | Amine acid salt charge enhancing toner additives | Thomas R. Hoffend | 1984-12-25 |