Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6467089 | Audience measurement system incorporating a mobile handset | Daozheng Lu | 2002-10-15 |
| 5737026 | Video and data co-channel communication system | Daozheng Lu, Henry B. Wheeler, Robert Dougherty | 1998-04-07 |