DH

David D. Helgeson

PI Polaris Industries: 12 patents #55 of 746Top 8%
CI Cummins Filtration Ip: 1 patents #290 of 460Top 65%
📍 Vadnais Heights, MN: #39 of 216 inventorsTop 20%
🗺 Minnesota: #5,782 of 52,454 inventorsTop 15%
Overall (All Time): #364,401 of 4,157,543Top 9%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
12384214 Vehicle having adjustable compression and rebound damping Jonathon P. Graus, Alex R. Scheuerell 2025-08-12
12337643 Rear suspension assembly for a vehicle Alex R. Scheuerell, Aaron S. Norton 2025-06-24
12172518 Vehicle Joshua A. Rasa, Donald S. Hansen, Alex R. Scheuerell, Steven R. Franker, Stephen L. Nelson +4 more 2024-12-24
11975584 Vehicle having adjustable compression and rebound damping Jonathon P. Graus, Alex R. Scheuerell 2024-05-07
11958331 Rear suspension assembly for a vehicle Alex R. Scheuerell, Aaron S. Norton 2024-04-16
11912086 Suspension pre-load adjustment system Gordon J. Steinmetz, Jonathon P. Graus 2024-02-27
11904648 Adjustable suspensions and vehicle operation for off-road recreational vehicles Jonathon P. Graus, Kyle W. Olson, Justin T. Anderson, Jacob P. Horky, Kevin P. Blair 2024-02-20
11884117 Vehicle having adjustable compression and rebound damping Jonathon P. Graus, Alex R. Scheuerell 2024-01-30
11628722 Vehicle Joshua A. Rasa, Donald S. Hansen, Alex R. Scheuerell, Steven R. Franker, Stephen L. Nelson +4 more 2023-04-18
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
10603997 Electric vehicle Mark P. Bergstrom, Brian T. Hertzberg, Brent D. Raske, Gary V. Owen, Benjamin Johnson +2 more 2020-03-31
8272418 Apparatus, system, and method for manufacturing irregularly shaped panel filters Ana R. Considine, Larry T. Gunderson, Amy K. Luttropp, Steven Stokstad 2012-09-25