Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7881449 | Enhanced call notification service | Karrie Hanson, Gregory W. Bond, Healfdene Goguen, Donnie Henderson, Pamela Zave | 2011-02-01 |
| 7664058 | Method and apparatus for providing spontaneous multi-way telephone conversation with inserted messaging | Karrie Hanson | 2010-02-16 |
| 7593392 | Method and apparatus for providing asynchronous audio messaging | Karrie Hanson, Kermit Hal Purdy | 2009-09-22 |
| 7164762 | Enhanced call feature service | Karrie Hanson, Eric Cheung, Healfdene Goguen, Kermit Hal Purdy | 2007-01-16 |
| 6694003 | Method and apparatus for prepaid inbound call forwarding service | — | 2004-02-17 |
| 6456711 | Method for placing a call intended for an enhanced network user on hold while the enhanced network user is unavailable to take the call using a distributed feature architecture | Eric Cheung, Mark Jeffrey Foladare, Shelley B. Goldman, James Christopher Ramming, Roy Philip Weber | 2002-09-24 |