Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9961518 | Systems and methods for messaging using a broadband connection | Douglas B. Alston, Barbara Stark | 2018-05-01 |
| 9338029 | Systems and methods for messaging using a broadband connection | Douglas B. Alston, Barbara Stark | 2016-05-10 |
| 8515046 | Network selection of ringtones | Douglas B. Alston | 2013-08-20 |
| 8204201 | Calling party ringtone selection in telephone system | Douglas B. Alston | 2012-06-19 |
| 7450709 | Calling party ringtone selection in telephone system | Douglas B. Alston | 2008-11-11 |
| 7376126 | Systems and methods for messaging using a broadband connection | Douglas B. Alston, Barbara Stark | 2008-05-20 |
| 6901139 | Calling party ringtone selection in telephone system | Douglas B. Alston | 2005-05-31 |