Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5274401 | Electrostatic printhead | David E. Doggett, Brian J. Dahlquist | 1993-12-28 |
| 5062002 | Electrostatic printer with color hue or grey level controlled by the level and/or duty cycle of voltages applied to each styli | Brian J. Dahlquist, David E. Doggett | 1991-10-29 |