FS

Frank Schweigharett

IR International Coal Refining: 1 patents #17 of 33Top 55%
📍 Allentown, PA: #735 of 1,150 inventorsTop 65%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,015,376 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4518479 Time phased alternate blending of feed coals for liquefaction David S. Hoover, Diwaker Garg 1985-05-21