DF

David Ferris

DC Donaldson Company: 1 patents #454 of 695Top 70%
📍 Mahtomedi, MN: #170 of 255 inventorsTop 70%
🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #3,621,909 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6093237 Stack filter assembly and methods Scott Keller, Kirk A. Schneider, Todd G. Carey 2000-07-25