Sandnes
Norway
4
2024-09-26
The entities that hold a legal rights for patent applications filed by inventor Stein Arild F.:
Arild F. Stein from Sandnes, NO has applied for patents for these inventions. The list has both pending applications and granted patents:
WELL TOOL DEVICE FOR INJECTING A FLUID THROUGH A HOLE IN A WELL BORE
#2 | 2020-06-11Method and system for integrity testing
#3 | 2018-03-01Method and device for setting and retrieving a crown plug
#4 | 2014-11-27Flow activated circulating valve
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