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John B. Snell

3M: 2 patents #5,326 of 11,543Top 50%
📍 Lake Elmo, MN: #169 of 301 inventorsTop 60%
🗺 Minnesota: #23,881 of 52,454 inventorsTop 50%
Overall (All Time): #2,372,571 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4205219 Double grooved welding backup — 1980-05-27
4183454 Welding backup employing a train of knuckle-joint tiles — 1980-01-15