Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7900399 | Portable start gate assembly | Gary Williams | 2011-03-08 |
| D578223 | Start gate side cover | Gary Williams | 2008-10-07 |
| 6812856 | Lighted traffic sign attached to portable restroom | Richard M. Heinz | 2004-11-02 |
| 6150957 | Lighted sign and warning device | Richard M. Henz | 2000-11-21 |