Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6670981 | Laser printing with rewritable media | R. Stanley Williams, Xiao-An Zhang | 2003-12-30 |
| 6556470 | Field addressable rewritable media | Xiao-An Zhang, R. Stanley Williams | 2003-04-29 |