Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7503450 | Long roller slip conveyor | David E. Helgerson, Joshua D. Krause, Brian D. Koenig, Robert J. Robinson | 2009-03-17 |
| 7175018 | Conveyor assembly | David E. Helgerson, Brian D. Koenig, John Fresonke, Timothy J. Hall | 2007-02-13 |
| 6959804 | Conveyor assembly | David E. Helgerson, Brian D. Koenig, John Fresonke, Timothy J. Hall | 2005-11-01 |
| 6325351 | Highly damped kinematic coupling for precision instruments | Layton Hale | 2001-12-04 |