Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11598059 | Gate safety barrier assembly | Todd Mervin, Sunil Kalavathi, Robert J. Hensel | 2023-03-07 |
| 6585211 | Wheel chocking device and method for using the same | Martin P. Hageman, Charles H. Hodges, Jack L. Sherard | 2003-07-01 |
| 6478525 | Wheel chocking device and method for using the same | Martin P. Hageman, Charles H. Hodges, Jack L. Sherard | 2002-11-12 |
| 6357987 | Powered wheel chock with folding supports | — | 2002-03-19 |
| 6276496 | Wheel chocking device | Martin P. Hageman | 2001-08-21 |
| 6250432 | Wheel chocking device and method for using the same | Martin P. Hageman, Charles H. Hodges, Jack L. Sherard | 2001-06-26 |
| 5927928 | Wheel chocking device | Martin P. Hageman | 1999-07-27 |