JM

John R. Mastandrea

📍 Rancho Palos Verdes, CA: #17 of 108 inventorsTop 20%
🗺 California: #2,144 of 10,592 inventorsTop 25%
Overall (1989): #94,123 of 140,708Top 70%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4852054 Volumetric leak detection system for underground storage tanks and the like — 1989-07-25