Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7862252 | Vehicle barrier system | Matthew A. Gelfand, Jon Jackson | 2011-01-04 |
| 7845877 | Enhanced vehicle barrier system | Matthew A. Gelfand | 2010-12-07 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7862252 | Vehicle barrier system | Matthew A. Gelfand, Jon Jackson | 2011-01-04 |
| 7845877 | Enhanced vehicle barrier system | Matthew A. Gelfand | 2010-12-07 |