DF

Douglas E. Fessel

📍 Waterville, MN: #1 of 2 inventorsTop 50%
🗺 Minnesota: #587 of 4,549 inventorsTop 15%
Overall (2002): #67,674 of 266,432Top 30%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6464865 Wastewater dispersal system Gary A. Tipton 2002-10-15
6413427 Nitrogen reduction wastewater treatment system Gary A. Tipton 2002-07-02