RK

Richard Kronfeld

📍 Minneapolis, MN: #1,962 of 6,114 inventorsTop 35%
🗺 Minnesota: #19,064 of 52,454 inventorsTop 40%
Overall (All Time): #1,444,591 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D873710 Hybrid electric bicycle 2020-01-28
9956880 Variable resistance serial hybrid electric bicycle Lyon Smith, Russell Bockin, Steve Castellotti 2018-05-01
9505310 Variable resistance serial hybrid electric bicycle Lyon Smith, Russell Bockin, Steve Castellotti 2016-11-29