Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8064892 | Off-hook triggered cellular-landline conference call | Tong Zhou | 2011-11-22 |
| 7868826 | Method and system for determining locations of mobile stations using directional corrections | James C. Swift | 2011-01-11 |