Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9098150 | Position sensing systems for use in touch screens and prismatic film used therein | Steven R. Chapman | 2015-08-04 |
| 8928625 | Retroreflector for use in touch screen applications and position sensing systems | Steven R. Chapman | 2015-01-06 |
| 8405636 | Optical position sensing system and optical position sensor assembly | — | 2013-03-26 |
| 8405637 | Optical position sensing system and optical position sensor assembly with convex imaging window | — | 2013-03-26 |
| 7751671 | Optical touchscreens comprising removably connected optical members | John Newton | 2010-07-06 |