PS

Paul D. Spaulding

NV National Oilwell Varco: 1 patents #8 of 34Top 25%
Overall (2011): #197,361 of 364,097Top 55%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7975392 Downhole tool — 2011-07-12