Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6668246 | Multimedia data delivery and playback system with multi-level content and privacy protection | Minerva M. Yeung, Robert G. Liu, William W. Macy, Boon-Lock Yeo | 2003-12-23 |