Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4338390 | Quarternary ammonium sulfate or sulfonate charge control agents for electrophotographic developers compatible with viton fuser | — | 1982-07-06 |
| 4326019 | Positive toners containing long chain hydrazinium compounds | Peter F. Erhardt | 1982-04-20 |
| 4324851 | Positive color toners | Dominic F. Sherony, Peter F. Erhardt | 1982-04-13 |
| 4312933 | Method of imaging using nitrogen-containing additives for magnetic toners | — | 1982-01-26 |