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John Spirk

DI Dart Industries: 1 patents #199 of 354Top 60%
📍 Moreland Hills, OH: #70 of 83 inventorsTop 85%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #3,980,965 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D291583 Stacking toy or the like Robert F. Bateman, Rino Conti, John R. Nottingham 1987-08-25