Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6430552 | Method for converting queries with logical operators into free text queries | — | 2002-08-06 |
| 6363374 | Text proximity filtering in search systems using same sentence restrictions | Lucretia H. Vanderwende, William B. Dolan | 2002-03-26 |