Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8735743 | Transducer device having strain relief coil housing | Trent Hassell | 2014-05-27 |
| 8115495 | Wired pipe signal transmission testing apparatus and method | — | 2012-02-14 |
| 6109554 | Combined fiber containers and payout tubes and plastic payout tubes | Frank W. Kotzur | 2000-08-29 |
| 6086012 | Combined fiber containers and payout tube and plastic payout tubes | Frank W. Kotzur | 2000-07-11 |
| 5979812 | Coil with large payout hole and tube for kinkless payout | Frank W. Kotzur | 1999-11-09 |