Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7957717 | System and method for differentiating between incoming and outgoing messages and identifying correspondents in a TTY communication | Gerhard Dietrich Klassen, David J. Dougall, Mohamed Farid | 2011-06-07 |