Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6292190 | Automatic identification of geometric relationships between elements of a computer-generated drawing | — | 2001-09-18 |
| 6233351 | Method and apparatus for processing a freehand sketch | Mark A. Feeney | 2001-05-15 |
| 5615321 | Automatic identification of geometric relationships between elements of a computer-generated drawing | — | 1997-03-25 |