Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6632044 | Method for interconnecting a plurality of roadway barrier modules and controlling movement thereof | — | 2003-10-14 |
| 6474904 | Traffic barrier with liquid filled modules | Owen S. Denman, Jack S. Mazer | 2002-11-05 |
| 6439802 | Interconnected telescoping movable roadway barrier modules | — | 2002-08-27 |
| 6428237 | Non-redirective gating crash cushion apparatus for movable, permanent and portable roadway barriers | — | 2002-08-06 |
| 6413009 | Vehicular traffic barrier system | — | 2002-07-02 |
| 5885046 | Four-wheel, double bogey for a lane barrier positioning vehicle | Steven L. Peek | 1999-03-23 |
| 5387049 | Roadway barrier module, system and method | — | 1995-02-07 |
| 5006010 | Roadway with uni-directional light reflective lane marker | — | 1991-04-09 |
| 4828425 | Pre-loaded hinges for lane barrier system | — | 1989-05-09 |
| 4815889 | Lane barrier system with pivot control and method | — | 1989-03-28 |
| 4806044 | Anti-crash lane barrier with self-centering hinges | — | 1989-02-21 |
| 4636108 | Flexible surface mount delineator | — | 1987-01-13 |
| 4306398 | Airtight and deformable sealing gasket for greenhouse vent closures | — | 1981-12-22 |