Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5939702 | Writing implement having an integrated optical reader | Mark S. Knighton, David D. Drobnis, John Vernon | 1999-08-17 |
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5939702 | Writing implement having an integrated optical reader | Mark S. Knighton, David D. Drobnis, John Vernon | 1999-08-17 |