DH

Donald M. Harold

DC Donaldson Company: 2 patents #358 of 695Top 55%
📍 Prior Lake, MN: #212 of 425 inventorsTop 50%
🗺 Minnesota: #23,881 of 52,454 inventorsTop 50%
Overall (All Time): #2,317,926 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5034037 Filter housing with integral fuel trap Kevin Schield 1991-07-23
4242115 Air cleaner assembly Gregory A. Ufken 1980-12-30