Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7469420 | Key transport tamper protection | David J. Duffield, Michael Scott Deiss | 2008-12-23 |
| 6961401 | Retractable pedometer | Michael Nally | 2005-11-01 |
| 6611511 | Cellular telephone communication system using sector splitting for improved performance | — | 2003-08-26 |