Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7101143 | Traffic cone retrieving device for removing traffic cones from roadway surfaces | Chad Orthaus, Jamie Zimmerman, Bertrum England, George Hammond, Jeffrey Arnold Wilkens | 2006-09-05 |
| 6726434 | Traffic cone setting devices for depositing traffic cones onto roadway surfaces | Chad Orthaus, Jamie Zimmerman, Bertrum England, Brad Anderson, Jeffrey Arnold Wilkens | 2004-04-27 |