JB

John Birkmann

AI American Railcar Industries: 1 patents #9 of 29Top 35%
UR Union Pacific Railroad: 1 patents #13 of 46Top 30%
📍 Saint Charles, MO: #40 of 90 inventorsTop 45%
🗺 Missouri: #8,863 of 23,789 inventorsTop 40%
Overall (All Time): #1,933,478 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10246106 Flooring incorporating open and enclosed air ducts Brian L. Davis, Mark Horne 2019-04-02
9789882 Door sealing assembly for a railcar and method of assembling the same Roger Dalske, Spencer Ashie-Winns, Hariharanath Kavuri 2017-10-17