Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9547366 | Systems and methods for haptic and gesture-driven paper simulation | Christopher J. Ullrich, David M. Birnbaum | 2017-01-17 |
| 8896524 | Context-dependent haptic confirmation system | David M. Birnbaum, Christopher J. Ullrich | 2014-11-25 |