JI

John A. Imsdahl

DC Donaldson Company: 2 patents #358 of 695Top 55%
UN Unisys: 2 patents #632 of 2,015Top 35%
SP Sperry: 1 patents #355 of 841Top 45%
📍 Richfield, MN: #56 of 268 inventorsTop 25%
🗺 Minnesota: #13,602 of 52,454 inventorsTop 30%
Overall (All Time): #1,043,278 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6338471 Flow control system for an evaporative cooler sump Michael Joseph McCarthy 2002-01-15
6206348 Evaporative cooler for a gas turbine engine Leon Robert Cuvelier, Alan John Spychalla 2001-03-27
5003431 Insertion, extraction, and clamping apparatus for electrical modules 1991-03-26
4796432 Long hold time cryogens dewar Dale J. Fixsen, Roger Hastings 1989-01-10
4750631 Anti-slosh apparatus for liquid containers Roger Hastings 1988-06-14