Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6847960 | Document retrieval by information unit | Wen-Syan Li, Yi-Leh Wu | 2005-01-25 |
| 6175829 | Method and apparatus for facilitating query reformulation | Wen-Syan Li | 2001-01-16 |