DR

David S. Ross

ZI Zimpro/Passavant: 1 patents #1 of 7Top 15%
📍 San Francisco, CA: #59 of 251 inventorsTop 25%
🗺 California: #2,144 of 10,592 inventorsTop 25%
Overall (1989): #121,872 of 140,708Top 90%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4818414 Slime control for primary filtration systems — 1989-04-04