DH

David Michel Harrington

VL Varel International Ind., L.L.C.: 5 patents #2 of 22Top 10%
📍 Dallas, TX: #30 of 660 inventorsTop 5%
🗺 Texas: #649 of 14,752 inventorsTop 5%
Overall (2016): #29,705 of 481,213Top 7%
5
Patents 2016

Issued Patents 2016

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
9488007 Wear resistant plates on a leading transitional surface of the leg for a rotary cone drill bit Amnach Kongamnach, Cesar A. Fierro 2016-11-08
9415496 Double wall flow tube for percussion tool Anthony Plana 2016-08-16
9404342 Top mounted choke for percussion tool Anthony Plana 2016-08-02
9376866 Hybrid rotary cone drill bit Kyle Nobile, Matt Stroever, Karl W. Rose 2016-06-28
9260922 Roller cone drill bit with cuttings evacuator Amnach Kongamnach 2016-02-16