Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814250 | Electrophotographic toner and developer compositions containing dioctylsulfosuccinate and sodium benzoate charge control agents | Michelle S. Kwarta, Howard J. Helenbrook | 1989-03-21 |