Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4264697 | Imaging system | Steven R. Perez, Alan R. Monahan, Peter F. Erhardt, Eugene F. Young, Christopher J. AuClair | 1981-04-28 |
| 4256824 | Method using positively charged electrophotographic toner containing amido dialkyl hydroxy ammonium compound | — | 1981-03-17 |
| 4254205 | Positive toners containing alkyl picolinium compounds as charge control agents | Peter F. Erhardt | 1981-03-03 |
| 4221856 | Electrographic toner containing resin-compatible quaternary ammonium compound | — | 1980-09-09 |
| 4218530 | Single component magnetic toner | — | 1980-08-19 |
| 4192902 | In situ coating then spray drying of magnetic toner | — | 1980-03-11 |