Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5402210 | Dynamic developer bias control for use in an electrostatographic printing machine | Lawrence M. Hart, Xu Feng | 1995-03-28 | $5,063,000 |
| 5400122 | Non-linear selectively variable copy contrast adjustment device | Thomas F. Szlucha, Xu Feng | 1995-03-21 | $7,743,000 |