Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7712341 | Electronic combination lock | James Paul Davidson | 2010-05-11 |
| 5986539 | Hafe-duplex two-wire DC power-line communication system | Gordon P. Hampton | 1999-11-16 |
| 4788527 | Apparatus and method for device control using a two conductor power line | — | 1988-11-29 |
| 4770012 | Electronic digital combination lock | Gordon P. Hampton | 1988-09-13 |
| 4457148 | Electronic digital combination lock | Gordon P. Hampton | 1984-07-03 |