CS

Charles D. Shaffer

📍 Fullerton, CA: #372 of 1,038 inventorsTop 40%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,356,373 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4467823 High pressure ball valve Ivan O. Miller 1984-08-28
4428592 Mesh reinforced elastomeric element for oil well components — 1984-01-31