Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879199 | Process for preparing encapsulated color toner compositions | Robert J. Gruber, Paul C. Julien, John F. Knapp, Steven B. Bolte | 1989-11-07 |
| 4876169 | Toner compositions with release additives therein | Robert J. Gruber, Shadi L. Malhotra, Robert A. Nelson, Carol A. Fox, Thomas R. Hoffend | 1989-10-24 |
| 4814253 | Toner compositions with release agents therein | Robert J. Gruber, Shadi L. Malhotra, John G. VanDusen | 1989-03-21 |