Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6625647 | Method and apparatus for evaluating service to a user over the internet | James Barrick, Tong Zou | 2003-09-23 |
| 6006260 | Method and apparatus for evalutating service to a user over the internet | James Barrick, Tong Zou | 1999-12-21 |