RC

Rui Cheng

NV National Oilwell Varco: 1 patents #15 of 97Top 20%
📍 Markham, CA: #74 of 184 inventorsTop 45%
Overall (2017): #259,112 of 506,227Top 55%
1
Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9650840 Method and apparatus for erecting a drilling rig Robert Cai 2017-05-16