WC

Weng-Kwen Raymond Chia

SI Smith International: 2 patents #2 of 18Top 15%
📍 Irvine, CA: #12 of 136 inventorsTop 9%
🗺 California: #676 of 10,592 inventorsTop 7%
Overall (1989): #13,346 of 140,708Top 10%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4824123 Mechanical face seal for rock bits George F. Anderson 1989-04-25
4822057 Mechanical face seal for rock bits George F. Anderson 1989-04-18