JH

John T. Herman

DC Donaldson Company: 26 patents #39 of 695Top 6%
📍 Mahtomedi, MN: #15 of 255 inventorsTop 6%
🗺 Minnesota: #2,420 of 52,454 inventorsTop 5%
Overall (All Time): #155,589 of 4,157,543Top 4%
26
Patents All Time

Issued Patents All Time

Showing 26–26 of 26 patents

Patent #TitleCo-InventorsDate
4350282 Self-purging centrifuge Denis J. Dudrey 1982-09-21