Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5303361 | Search and retrieval system | Steve Colwell, William Gross, Lee Hasiuk, David Alexander Rolfe | 1994-04-12 |
| 4788538 | Method and apparatus for determining boundaries of graphic regions | Stephen A. Klein, David Alexander Rolfe, William Gross | 1988-11-29 |