Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5126225 | Toners and developers containing ether-containing quaternary ammonium salts as charge control agents | John W. Wilson | 1992-06-30 |
| 5110977 | Ester-containing quaternary ammonium salts as adhesion improving toner charge agents | John C. Wilson, Lawrence P. DeMejo | 1992-05-05 |
| 5075190 | Toners and developers containing N-substituted pyridinium salts as charge control agents | Peter S. Alexandrovich, Zona R. Pierce, John C. Wilson | 1991-12-24 |