ES

Edwin L. Speakman

SI Standard Brands Incorporated: 3 patents #3 of 19Top 20%
📍 De Witt, IA: #30 of 103 inventorsTop 30%
🗺 Iowa: #4,661 of 15,303 inventorsTop 35%
Overall (All Time): #1,682,872 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4375535 Stable liquid, amylopectin starch graft copolymer compositions Adrian P. Kightlinger, Grant T. Van Duzee 1983-03-01
4301017 Stable, liquid starch graft copolymer composition Adrian P. Kightlinger, Grant T. Van Duzee 1981-11-17
4279791 Recovery of cerium from polymer dispersions 1981-07-21