JB

John E. Blacklaws

📍 Houston, TX: #12,319 of 21,073 inventorsTop 60%
🗺 Texas: #73,555 of 125,132 inventorsTop 60%
Overall (All Time): #3,987,895 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4715454 Mechanical directional drilling jar with swivel means Chuan C. Teng, Rene A. Chapelle, Lee E. McComsey 1987-12-29