DH

David E. Helgerson

AU Automation: 1 patents #20 of 55Top 40%
Overall (All Time): #686,669 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12384635 Adjustable tray stacker/destacker assembly Reed A. Bailey 2025-08-12
7748520 Slip roller conveyor Brian D. Koenig 2010-07-06
7503450 Long roller slip conveyor Steven A. Jensen, Joshua D. Krause, Brian D. Koenig, Robert J. Robinson 2009-03-17
7175018 Conveyor assembly Brian D. Koenig, Steven A. Jensen, John Fresonke, Timothy J. Hall 2007-02-13
6959804 Conveyor assembly Brian D. Koenig, Steven A. Jensen, John Fresonke, Timothy J. Hall 2005-11-01
5558205 Conveyors Brian R. Lee 1996-09-24
5558206 Conveyor technology Brian R. Lee 1996-09-24