Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5493279 | Electronic combination lock with covert entry detection feature and method of covert entry detection | Gerald L. Dawson, Michael J. Kelly, Craig Benjamin Williams | 1996-02-20 |
| 5271253 | Electronic combination lock with magnetic anti-attack interlock | Gerald L. Dawson | 1993-12-21 |
| 4376932 | Multi-registration in character recognition | — | 1983-03-15 |