DH

David E. Helgerson

📍 Plymouth, MN: #39 of 138 inventorsTop 30%
🗺 Minnesota: #1,168 of 4,231 inventorsTop 30%
Overall (2005): #217,043 of 245,428Top 90%
1
Patents 2005

Issued Patents 2005

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6959804 Conveyor assembly Brian D. Koenig, Steven A. Jensen, John Fresonke, Timothy J. Hall 2005-11-01