Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668638 | Error diffusion method with symmetric enhancement | — | 1997-09-16 |
| 5649073 | Automatic calibration of halftones | Charles M. Hains, Gaurav Sharma | 1997-07-15 |
| 5646744 | Show-through correction for two-sided documents | — | 1997-07-08 |