Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5771307 | Audience measurement system and method | Daozheng Lu, William L. Thomas, Morris Lee, Bruce E. Bernard, Jia Zhang | 1998-06-23 |
| 5550928 | Audience measurement system and method | Daozheng Lu, William L. Thomas, Morris Lee, Bruce E. Bernard, Jia Zhang | 1996-08-27 |