Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4591887 | Solvent resistant thermally printable material | Roberta R. Arbree, David DeGulis, Henry W. Goodwin | 1986-05-27 |
| 4578690 | Carbonless developer sheet | Robert Malik | 1986-03-25 |
| 4374918 | Thermally stable liquid negative developer | Charles H. C. Pian, Tahsin A. Ashour | 1983-02-22 |
| 4363863 | Liquid negative developer compositions for electrostatic copying containing polymeric charge control agent | Charles H. C. Pian | 1982-12-14 |
| 4306009 | Liquid developer compositions with a vinyl polymeric gel | Charles H. C. Pian | 1981-12-15 |