Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673320 | Method and apparatus for image-based validations of printed documents | Richard N. Ellson | 1997-09-30 |
| 5673376 | Method and apparatus for graphically generating images of arbitrary size | Richard N. Ellson, David J. Kroth | 1997-09-30 |