Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7175018 | Conveyor assembly | David E. Helgerson, Brian D. Koenig, Steven A. Jensen, Timothy J. Hall | 2007-02-13 |
| 6959804 | Conveyor assembly | David E. Helgerson, Brian D. Koenig, Steven A. Jensen, Timothy J. Hall | 2005-11-01 |