Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6671608 | Vehicle clock tampering detector | Ian Daniel McKenzie, Richard M. Avery, Jr. | 2003-12-30 |
| 6536264 | Apparatus for detecting coolant corrosiveness | Ian Daniel McKenzie, David Lloyd Hart | 2003-03-25 |
| 6347272 | Vehicle passing speed timer | Richard M. Avery, Jr., Ian Daniel McKenzie | 2002-02-12 |