Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DU

David R. Underdown — 1 Patent in 2021

Chevron: 1 patents #119 of 352Top 35%
Conroe, TX: #51 of 132 inventorsTop 40%
Texas: #5,748 of 16,780 inventorsTop 35%
Overall (2021): #478,194 of 548,734Top 90%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11174711 Methods of coating a sand screen component Jeremy Alexander Davis, Antonio Lazo, Reza Sarrafi-Nour 2021-11-16 $432,803,000