Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8510217 | Internet-calling card | — | 2013-08-13 |
| 6240337 | Flywheel reserve power for outside plant of a communication network | William P. Marr, Jr., Frederick G. Hofman | 2001-05-29 |