DM

David W. McCulloch

NV National Oilwell Varco: 3 patents #2 of 93Top 3%
📍 Arlington, TX: #6 of 112 inventorsTop 6%
🗺 Texas: #1,482 of 14,752 inventorsTop 15%
Overall (2016): #75,950 of 481,213Top 20%
3
Patents 2016

Issued Patents 2016

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9458682 Coiled tubing injector with limited slip chains Timothy S. Steffenhagen, William B. White, William G. Stewart 2016-10-04
9353593 Handler for blowout preventer assembly Mike Xiaolei Lu 2016-05-31
9316067 Coiled tubing injector handler Mike Xiaolei Lu 2016-04-19