Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6122410 | Method and apparatus for locating a two-dimensional symbol using a double template | Joe Zheng | 2000-09-19 |
| 5566245 | The performance of a printer or an imaging system using transform-based quality measures | Joe Zheng | 1996-10-15 |
| 5555313 | Method and apparatus for characterizing the performance of a printer or an imaging system | Joe Zheng | 1996-09-10 |