DH

David D. Helgeson

PI Polaris Industries: 2 patents #15 of 182Top 9%
📍 Vadnais Heights, MN: #10 of 34 inventorsTop 30%
🗺 Minnesota: #1,164 of 7,038 inventorsTop 20%
Overall (2021): #169,339 of 548,734Top 35%
2
Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11021031 Suspension pre-load adjustment system Gordon J. Steinmetz, Jonathon P. Graus 2021-06-01
10987987 Vehicle having adjustable compression and rebound damping Jonathon P. Graus, Alex R. Scheuerell 2021-04-27