Arvada, Colorado
United States
3
2015-03-12
The entities that hold a legal rights for patent applications filed by inventor Holtzman Keith E.:
Keith E. Holtzman from Arvada, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Systems and methods for optimized well creation in a shale formation
#2 | 2014-11-06Pipe in pipe BHA electric drive motor
#3 | 2014-02-13FRICTION REDUCTION DEVICE FOR DRILL PIPE
646571 ⎘