DS

Donald W. Schumacher

ST Stepan: 1 patents #4 of 14Top 30%
📍 Bethel Park, PA: #1 of 13 inventorsTop 8%
🗺 Pennsylvania: #989 of 4,367 inventorsTop 25%
Overall (1997): #157,607 of 185,788Top 85%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5627221 Process for production of low density water-blown rigid foams with flow and dimensional stability George Magnus, Joanne M. Moster 1997-05-06