Patents per Year
Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6055008 | Electrostatic printer having two-dimensional humidity compensation | — | 2000-04-25 | |
| 5942095 | Method of continuous purification of liquid toner in an electrostatic printing system | Gene F. Day | 1999-08-24 | |
| 5748217 | Charge compensation circuit for an electrostatic writing head | — | 1998-05-05 | |
| 5514269 | Dual separator purification system | Gene F. Day | 1996-05-07 | |
| 5335055 | Bidirectional toning process | — | 1994-08-02 | |
| 4849776 | Electrostatic printer for digitized images or data | Gene F. Day, Claus P. J. Suverkropp | 1989-07-18 | |
| 4419679 | Guadrascan styli for use in staggered recording head | Sherman Rutherford, Noel Schmidt | 1983-12-06 | $624,000 |
| 4417391 | Method for forming a staggered recording head | Sherman Rutherford, Noel Schmidt | 1983-11-29 | $630,000 |