Tulsa, Oklahoma
United States
3
2016-03-24
The entities that hold a legal rights for patent applications filed by inventor Megill Mark S.:
Mark S. Megill from Tulsa, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Threaded Connection with Secure Shoulder Ring for Electrical Submersible Pump
#2 | 2014-06-12Flapper equalizer with integral spring
#3 | 2011-04-07Multi-stage pressure equalization valve assembly for subterranean valves
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