Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6055268 | Multimode digital modem | William C. Timm, Walter Y. Chen, Gene A. Frantz, Domingo G. Garcia, Xiaolin Lu +7 more | 2000-04-25 |
| 6021158 | Hybrid wireless wire-line network integration and management | Walter Y. Chen, Douglas B. Weiner | 2000-02-01 |