Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7934206 | Service level executable environment for integrated PSTN and IP networks and call processing language therefor | David Alexander Butler | 2011-04-26 |
| 7304984 | Methods and systems for creating, distributing and executing multimedia telecommunications applications over circuit and packet switched networks | David Alexander Butler, Del Stevens | 2007-12-04 |