SP

Stelvio Papetti

AH American Hoechst: 1 patents #61 of 142Top 45%
📍 Leominster, MA: #170 of 286 inventorsTop 60%
🗺 Massachusetts: #56,664 of 88,656 inventorsTop 65%
Overall (All Time): #4,095,603 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4286069 Method of making expandable styrene-type beads James E. Millington 1981-08-25