Ralph L. Clarke

📍 Sugar Land, TX: #944 of 1,869 inventorsTop 55%

🗺 Texas: #52,441 of 125,132 inventorsTop 45%

Overall (All Time): #2,163,663 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
7311157	Tool for controlling rotation of a bottom hole assembly with respect to a drillstring	—	2007-12-25
5458208	Directional drilling using a rotating slide sub	—	1995-10-17