Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6324305 | Method and apparatus for segmenting a composite image into mixed raster content planes | Robert R. Buckley, R. Victor Klassen, Norman W. Zeck, Peter A. Crean | 2001-11-27 |
| 6226103 | Method of producing spot colors appearance with process color printing | R. Victor Klassen | 2001-05-01 |
| 5898822 | Using the phase information in the halftone dot structure to minimize artifacts when switching between halftone dots on a scan line | — | 1999-04-27 |
| 5394252 | Hybrid quantization method for color document reproduction | Reiner Eschbach | 1995-02-28 |
| 4553171 | Tile encoding in image printing | L. Bayles Holt | 1985-11-12 |
| 4245258 | Method and apparatus for reduction of false contours in electrically screened images | — | 1981-01-13 |
| 4185304 | Electronic halftone screening | — | 1980-01-22 |