Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12270166 | Link for foldable portable roadway warning device | — | 2025-04-08 |
| 11535994 | Vehicle-mountable cargo carrier for portable rumble strips | — | 2022-12-27 |
| 10662042 | Portable rumble strip retrieval system | — | 2020-05-26 |
| 10661697 | Vehicle-mountable cargo carrier for portable rumble strips | — | 2020-05-26 |
| 9534394 | Portable modular pedestrian ramp | Gregory H. Brown | 2017-01-03 |
| 9297127 | Barricade assembly with foldable legs | Gregory H. Brown | 2016-03-29 |
| 8302937 | Pedestrian barricade assembly | Gregory H. Brown | 2012-11-06 |
| 8282309 | Inertial barrier | Gregory H. Brown | 2012-10-09 |
| D665689 | Barricade panel | Gregory H. Brown | 2012-08-21 |
| 7922420 | Barriers with kiss-offs | Marc E. Christensen, Greg H. Brown, David E. Cowan, Bryan D. Grabowski, Bruce E. Owens +1 more | 2011-04-12 |
| 7736087 | Portable highway warning device | Gregory H. Brown | 2010-06-15 |
| 7681857 | Portable sign and barricade assemblies and plastic molded uprights and light and flag mounts therefor | Gregory H. Brown | 2010-03-23 |
| 7588387 | Barriers with interlocking sides | Marc E. Christensen, Greg H. Brown, David E. Cowan, Bryan D. Grabowski, Bruce E. Owens +1 more | 2009-09-15 |
| 7536973 | Plastic blow molded board-like members | Gregory H. Brown | 2009-05-26 |
| 7523715 | Portable sign and barricade assemblies and plastic molded uprights and light and flag mounts therefor | Gregory H. Brown | 2009-04-28 |
| D542685 | Inertial barrier container | Gregory H. Brown | 2007-05-15 |
| D533281 | Barrier with interlocking sides | Marc E. Christensen, Greg H. Brown, David E. Cowan, Bryan D. Grabowski, Bruce E. Owens +1 more | 2006-12-05 |
| 7111815 | Base support for post or other upright | Gregory H. Brown | 2006-09-26 |
| 7059798 | Traffic channelizer devices | Gregory H. Brown | 2006-06-13 |
| 6817805 | Traffic channelizer devices | Gregory H. Brown | 2004-11-16 |
| 6769207 | Portable sign assembly | Gregory H. Brown, David E. Cowan | 2004-08-03 |
| D486250 | Base support for post or other upright | Gregory H. Brown | 2004-02-03 |
| D486089 | Traffic channelizer | Gregory H. Brown | 2004-02-03 |
| 6185870 | Adjustable threshold assembly | — | 2001-02-13 |