Harry Richard Stanley O'Brien

NL National Oilwell Varco Uk Limited: 2 patents #5 of 14Top 40%

📍 Elrick, GB: #2 of 2 inventorsTop 100%

Overall (All Time): #1,993,336 of 4,157,543Top 50%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
9803432	Roller device	Carl Wood	2017-10-31
D732086	Wireline roller device	Carl Wood	2015-06-16