Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6817805 | Traffic channelizer devices | Gregory H. Brown | 2004-11-16 |
| 6769207 | Portable sign assembly | Gregory H. Brown, David E. Cowan | 2004-08-03 |
| D486089 | Traffic channelizer | Gregory H. Brown | 2004-02-03 |
| D486250 | Base support for post or other upright | Gregory H. Brown | 2004-02-03 |