DE

David Martin Ellis

NV National Oilwell Varco: 2 patents #125 of 551Top 25%
📍 Cypress, TX: #499 of 1,064 inventorsTop 50%
🗺 Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #1,894,156 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11198919 Wellbore tubular air quenching Luis Marcos Cadena, Christopher Alan Conrey, Daryl Stevenson 2021-12-14
10344346 Wellbore tubular air quenching Luis Marcos Cadena, Christopher Alan Conrey, Daryl Stevenson 2019-07-09