DS

David E. Shewmon

NR North American Refractories: 1 patents #20 of 40Top 50%
📍 Cincinnati, OH: #4,941 of 8,043 inventorsTop 65%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #3,765,942 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5397110 Refractory brick and method of making and using same Bohus Brezny 1995-03-14