DF

Douglas P. Ferron

WG Water Gremlin: 1 patents #12 of 15Top 80%
📍 White Bear Lake, MN: #358 of 561 inventorsTop 65%
🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #3,601,427 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6325136 Bismuth and bismuth alloy fishing sinker Robert W. Ratte, Thomas P. Donohoe, Geoffrey F. Ratte 2001-12-04