Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6772945 | Printed card to control printer | Terry P. Mahoney | 2004-08-10 |
| 6771820 | Encoding information within text printed on a page using differing gray or color levels | — | 2004-08-03 |