R. Douglas Fredrickson

📍 Avon, MN: #6 of 21 inventorsTop 30%

🗺 Minnesota: #19,064 of 52,454 inventorsTop 40%

Overall (All Time): #1,384,315 of 4,157,543Top 35%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
11554621	Trailer side and vehicle side weight sensors	—	2023-01-17
10753789	Weight sensing vehicle hitch	—	2020-08-25
10309824	Weight sensing vehicle hitch	—	2019-06-04