ES

Emmett J. Speicher

EA E.I. Du Pont De Nemours And: 1 patents #4,343 of 8,010Top 55%
📍 Elkview, WV: #4 of 7 inventorsTop 60%
🗺 West Virginia: #1,664 of 3,425 inventorsTop 50%
Overall (All Time): #4,094,718 of 4,157,543Top 100%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4283254 Methylamines purification by distillation and purge Douglas E. Binau 1981-08-11