Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7030758 | Door blocking brace and lock | Harvey K. Markegard | 2006-04-18 |
| 6439131 | Convertible highway and rail freight vehicle | — | 2002-08-27 |
| 6199415 | Anti-theft steering wheel blocking lock | Harvey K. Markegard | 2001-03-13 |
| D431997 | Door blocking lock | Harvey K. Markegard | 2000-10-17 |
| 6116062 | Wheel blocking brake lock | Harvey K. Markegard | 2000-09-12 |
| D427886 | Wheel blocking brake lock | Harvey K. Markegard | 2000-07-11 |
| D411821 | Steering wheel lock | Harvey K. Markegard | 1999-07-06 |
| 5290379 | Method of making a temporary sign panel | — | 1994-03-01 |
| 4765569 | Passenger safety device for high speed vehicles | — | 1988-08-23 |