Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6408154 | Method and apparatus for enhancing electrostatic images | Richard A. Fotland | 2002-06-18 |
| 4980616 | Driver circuit for inductive elements such as CRT deflection coils | — | 1990-12-25 |
| 4839673 | AC corona enhancement for electrostatic imaging devices | Michael W. Raymond | 1989-06-13 |
| 4831393 | Belt and belt support for non-impact, direct charge electrographic printer | Walter C. Dean, II, Richard J. Coburn | 1989-05-16 |
| 4827295 | Conditioning apparatus for non-impact, direct charge electrographic printer belt | Walter C. Dean, II | 1989-05-02 |
| 4638339 | Electrographic charge deposition apparatus | Richard J. Coburn, Walter C. Dean, II, Norman L. Milliard | 1987-01-20 |
| 4423354 | Method and apparatus for controlling electrode voltage in electron beam tubes | — | 1983-12-27 |
| 4264912 | Image formation and development apparatus | Richard J. Coburn | 1981-04-28 |