Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9571530 | Internet based telephone line | — | 2017-02-14 |
| 9025588 | Internet based telephone line | — | 2015-05-05 |
| 8149822 | Internet based telephone line | — | 2012-04-03 |
| 7894588 | Telephone call handling list for multiple users | Michael D. Smith | 2011-02-22 |
| 7412035 | External detection of optional telephone services on a telephone line | Liam Keast | 2008-08-12 |
| 7408919 | Internet based telephone line | — | 2008-08-05 |
| 7158615 | External detection of optional telephone services on an unknown telephone line | Liam Keast | 2007-01-02 |
| 6987847 | Communication device monitoring | Stephen Vaughan Murphy, Roberto J. Devoto | 2006-01-17 |
| 6950498 | External detection of optional telephone services | Liam Keast | 2005-09-27 |
| 5809128 | Method and apparatus permitting notification and control of blocked incoming calls over a data network | — | 1998-09-15 |