DD

Donald R. Downing

📍 San Antonio, TX: #100 of 740 inventorsTop 15%
🗺 Texas: #3,232 of 17,606 inventorsTop 20%
Overall (2019): #177,420 of 560,194Top 35%
2
Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10316838 Method and apparatus for preventing gas lock/gas interference in a reciprocating downhole pump 2019-06-11
10174752 Anti-gas lock valve for a reciprocating downhole pump 2019-01-08