Ralph Lewis Ropp

AG Abb Vetco Gray: 1 patents #67 of 165Top 45%

SO Shell Offshore: 1 patents #21 of 54Top 40%

📍 Dallas, TX: #4,358 of 7,543 inventorsTop 60%

🗺 Texas: #73,555 of 125,132 inventorsTop 60%

Overall (All Time): #3,571,932 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6186239	Casing annulus remediation system	Noel A. Monjure, Kenneth L. Sikes, David Daniel Comeaux, Francis R. Bobbie	2001-02-13