Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5262825 | Density process control for an electrophotographic proofing system | Charles K. Nordeen, Gregory L. Zwadlo, Kevin M. Kidnie | 1993-11-16 |
| 5258810 | Method for calibrating an electrophotographic proofing system | Gregory L. Zwadlo, Charles K. Nordeen | 1993-11-02 |
| 4994860 | Liquid toners handling network for an electrographic printer | George G. Lunde, Gregory L. Zwadlo | 1991-02-19 |
| 4266868 | Multiple roll developing apparatus | Richard D. Hipp, Jr. | 1981-05-12 |