Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8559621 | Donned and doffed headset state detection | Timothy P. Johnston, Edward L. Reuss, Robert M. Khamashta | 2013-10-15 |
| 8538009 | Donned and doffed headset state detection | Timothy P. Johnston, Edward L. Reuss, Robert M. Khamashta | 2013-09-17 |
| 8335312 | Donned and doffed headset state detection | Timothy P. Johnston, Edward L. Reuss, Robert M. Khamashta | 2012-12-18 |
| 7227944 | Echo reduction for a headset or handset | J. Stephen Graham, Robert M. Khamashta, Iain McNeill | 2007-06-05 |
| 7039179 | Echo reduction for a headset or handset | J. Stephen Graham, Robert M. Khamashta, Iain McNeill | 2006-05-02 |