JH

John T. Herman

DC Donaldson Company: 2 patents #2 of 18Top 15%
📍 Mahtomedi, MN: #1 of 12 inventorsTop 9%
🗺 Minnesota: #50 of 1,035 inventorsTop 5%
Overall (1982): #11,866 of 81,411Top 15%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4366069 Coolant recovery system Denis J. Dudrey, Girma Wolde-Michael, Delmer L. Radeztsky 1982-12-28
4350282 Self-purging centrifuge Denis J. Dudrey 1982-09-21