HH

Hwa-Shan Ho

NI Nl Industries: 1 patents #1 of 8Top 15%
NS Nl Sperry-Sun: 1 patents #2 of 5Top 40%
📍 Spring, TX: #7 of 61 inventorsTop 15%
🗺 Texas: #331 of 4,134 inventorsTop 9%
Overall (1989): #25,313 of 140,708Top 20%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4848144 Method of predicting the torque and drag in directional wells — 1989-07-18
4804051 Method of predicting and controlling the drilling trajectory in directional wells — 1989-02-14