AS

Alan John Spychalla

DC Donaldson Company: 1 patents #454 of 695Top 70%
📍 Inver Grove Heights, MN: #190 of 287 inventorsTop 70%
🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #3,576,345 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6206348 Evaporative cooler for a gas turbine engine John A. Imsdahl, Leon Robert Cuvelier 2001-03-27