DM

Donald Elwin McDowell

FI Frank'S International: 2 patents #28 of 96Top 30%
AM Antelope Oil Tool & Mfg.: 1 patents #12 of 20Top 60%
📍 Millsap, TX: #4 of 7 inventorsTop 60%
🗺 Texas: #40,946 of 125,132 inventorsTop 35%
Overall (All Time): #1,532,644 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8770280 Expandable centralizer for expandable pipe string Jean Buytaert, Eugene Edward Miller 2014-07-08
8196654 Expandable centralizer for expandable pipe string Jean Buytaert, Eugene Edward Miller 2012-06-12
7878241 Expandable centralizer for expandable pipe string Jean Buytaert, Eugene Edward Miller 2011-02-01