Issued Patents 2016
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9357493 | Stylus power management using motion and orientation sensing | David George Butler, Arvind Thiagarajan | 2016-05-31 |
| 9301141 | Secure wireless network credential sharing | David George Butler, Richard David Young, Thomas Mader | 2016-03-29 |
| 9245433 | Passive device monitoring using radio frequency signals | David George Butler | 2016-01-26 |