Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8290538 | Data entry systems | Francis John Callaghan, Gary Douglas Robb | 2012-10-16 |
| 7920898 | Data entry systems | Francis John Callaghan, Gary Douglas Robb | 2011-04-05 |
| 7505785 | Data entry systems | Francis John Callaghan, Gary Douglas Robb | 2009-03-17 |
| 7139591 | Hand held telecommunications and data entry device | Francis John Callaghan, Gary Douglas Robb | 2006-11-21 |
| 6058304 | Data entry system | Francis John Callaghan, Gary Douglas Robb | 2000-05-02 |