RO

Richard G. Obst

WC Worcester Controls: 1 patents #2 of 13Top 20%
📍 Marlborough, MA: #528 of 796 inventorsTop 70%
🗺 Massachusetts: #56,664 of 88,656 inventorsTop 65%
Overall (All Time): #3,905,866 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4936547 Eccentric ball valve — 1990-06-26