SG

Stanley H. Gratt

SG Superior Graphite: 1 patents #14 of 28Top 50%
📍 Chicago, IL: #5,168 of 13,327 inventorsTop 40%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,302,940 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5224266 Method of manufacturing a hydraulic pump cylinder — 1993-07-06
4634545 Railroad track lubricant Peter L. Zaleski 1987-01-06