MD

Michael John Derkach

ET Evolution Oil Tools: 2 patents #5 of 7Top 75%
Overall (All Time): #1,959,910 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10030458 Anchor for a tubing string and method Shaun Arthur Wold 2018-07-24
9494019 Anchor for a tubing string and method Shaun Arthur Wold 2016-11-15