JK

John Franklin Kral

ED Electro-Motive Diesel: 1 patents #30 of 68Top 45%
PS Progress Rail Services: 1 patents #1 of 11Top 10%
📍 Naperville, IL: #61 of 335 inventorsTop 20%
🗺 Illinois: #1,398 of 8,424 inventorsTop 20%
Overall (2017): #138,799 of 506,227Top 30%
2
Patents 2017

Issued Patents 2017

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9719434 Locomotive control system having thermal management Douglas Michael Biagini, William Charles Hawkins 2017-08-01
9697964 Locomotive positive power bus contactor method of assembly Sidarta Fornari Beltramin 2017-07-04