DH

Don Harold

DC Donaldson Company: 1 patents #15 of 69Top 25%
📍 Prior Lake, MN: #18 of 52 inventorsTop 35%
🗺 Minnesota: #1,525 of 4,860 inventorsTop 35%
Overall (2003): #234,953 of 273,478Top 90%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6521009 Reverse flow air filter arrangement and method Donald F. Engel, Dolan Bartels, John R. Hacker, Bruce Crenshaw 2003-02-18