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Silvio J. Spigolon

📍 Memphis, TN: #435 of 1,908 inventorsTop 25%
🗺 Tennessee: #4,555 of 20,272 inventorsTop 25%
Overall (All Time): #1,304,209 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4734272 Phospho-gypsum recovery process Eddie K. Wilson, Sr. 1988-03-29
4608238 Process for treating phospho-gypsum waste product from wet-acid process of making phosphoric acid Eddie K. Wilson, Sr. 1986-08-26
4415543 Process for treating phospho-gypsum waste product from wet-acid process of making phosphoric acid Eddie K. Wilson, Sr. 1983-11-15
4312842 Process of manufacture of phosphoric acid with recovery of co-products Eddie K. Wilson, Sr. 1982-01-26