Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6196662 | Method to utilize a fixed element print head to print various dot spacings | Martin Voelker | 2001-03-06 |
| 5793397 | Printer assembly | Don Barker, John C. Hamma, John J. Mercede, Jr., Mike Raymond | 1998-08-11 |
| 5602624 | Apparatus for adding color indicia to printed documents | Richard J. Coburn, Stefan G. Golicz | 1997-02-11 |
| 4862198 | Electrostatic cleaning of electrodes in an electrographic printer | Robert S. Rizza, Ben W. Fagen, Michael W. Raymond, Peter Feher, Thomas B. Kegelman | 1989-08-29 |
| 4638339 | Electrographic charge deposition apparatus | Richard J. Coburn, Walter C. Dean, II, Thomas D. Kegelman | 1987-01-20 |