Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8081623 | Packet network based emergency backup telephone system | Ian Loren Halpern, Joseph Siegrist | 2011-12-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8081623 | Packet network based emergency backup telephone system | Ian Loren Halpern, Joseph Siegrist | 2011-12-20 |