DE

Donald F. Engel

DC Donaldson Company: 2 patents #4 of 32Top 15%
📍 Prior Lake, MN: #2 of 30 inventorsTop 7%
🗺 Minnesota: #307 of 3,156 inventorsTop 10%
Overall (1997): #42,059 of 185,788Top 25%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5690712 Reverse flow air filter arrangement and method — 1997-11-25
5613992 Reverse flow air filter arrangement and method — 1997-03-25