Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6483914 | Telephone filter arrangement | Leslie Derek Humphrey, Bryan Parlor | 2002-11-19 |
| 6477249 | Communications signal splitter and filter | Leslie Derek Humphrey | 2002-11-05 |
| 6400803 | Voice over digital subscriber line call redirection for lifeline service | Christopher Tate, Jonathan Beattie, Igor K Czajkowski, Mark Bridger | 2002-06-04 |
| 6373923 | Line testing method and apparatus therefor | Michael Grant | 2002-04-16 |