Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7496042 | Digital loop diagnostic port test before insertion | Bruce E. Johnson, Thomas J. Hammond-Doel, Michael I. Thompson | 2009-02-24 |
| 7024590 | Digital loop diagnostic port control monitor | Bruce E. Johnson, Thomas J. Hammond-Doel, Michael I. Thompson | 2006-04-04 |
| 6938189 | High performance digital loop diagnostic technology | Bruce E. Johnson, Thomas J. Hammond-Doel, Michael I. Thompson | 2005-08-30 |
| 6888800 | High performance digital loop diagnostic technology | Bruce E. Johnson, Thomas J. Hammond-Doel, Michael I. Thompson | 2005-05-03 |