Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4345015 | Dispersion-heat process employing hydrophobic silica for producing spherical electrophotographic toner powder | Wilhelmus J. VanRhijn | 1982-08-17 |
| 4286036 | Process for reversal development | — | 1981-08-25 |