Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880720 | Liquid developer compositions | Stephan V. Drappel, Raymond W. Wong | 1989-11-14 |
| 4877698 | Electrophotographic process for generating two-color images using liquid developer | P. Keith Watson, Ian D. Morrison | 1989-10-31 |
| 4830945 | Liquid electrophotographic developer comprising oppositely charged toner particles and dyes of different colors | Raymond W. Wong, Stephan V. Drappel | 1989-05-16 |
| 4822710 | Liquid developer compositions | James M. Duff, John R. C. Fuler, George R. Pravato, Raymond W. Wong | 1989-04-18 |
| 4816370 | Developer compositions with stabilizers to enable flocculation | Raymond W. Wong, Michael L. Hair | 1989-03-28 |
| 4804601 | Electrophotographic and electrographic imaging processes | P. Keith Watson, Henry R. Till | 1989-02-14 |
| 4797342 | Processes for the preparation of liquid developers with low vapor pressure components | Raymond W. Wong, Stephan V. Drappel | 1989-01-10 |
| 4795794 | Processes for colored particles from polymerizable dyes | Francoise M. Winnik, Christopher K. Ober | 1989-01-03 |