IK

Ilse S. Kingsley

IR International Coal Refining: 1 patents #17 of 33Top 55%
📍 Bethlehem, PA: #631 of 1,038 inventorsTop 65%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #3,965,979 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4634680 Sequential elution process 1987-01-06