DO

Dan E. O'Hair

EL Enterra Patco Oilfield Products Limited: 2 patents #1 of 4Top 25%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Conroe, TX: #258 of 788 inventorsTop 35%
🗺 Texas: #40,946 of 125,132 inventorsTop 35%
Overall (All Time): #1,646,064 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5492174 Rod guide with enhanced erodable volume — 1996-02-20
5487426 Rod guide with removable vanes — 1996-01-30
5358041 Rod guide — 1994-10-25