Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9977519 | Active pen with bidirectional communication | Kirk Hargreaves, David Sobel, Joseph Kurth Reynolds | 2018-05-22 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9977519 | Active pen with bidirectional communication | Kirk Hargreaves, David Sobel, Joseph Kurth Reynolds | 2018-05-22 |