RC

Richard Castillo

OI Oil States Industries: 1 patents #26 of 67Top 40%
📍 Norwalk, CA: #31 of 144 inventorsTop 25%
🗺 California: #149,087 of 386,348 inventorsTop 40%
Overall (All Time): #1,604,643 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D490841 Account balancing calculator 2004-06-01
5927330 Modular, high-volume, rotary selector valve Randy Minton, Roger Hart 1999-07-27
D273744 Picture frame 1984-05-08