Duncan, Oklahoma
United States
4
2020-07-09
The entities that hold a legal rights for patent applications filed by inventor Howard Robert:
Robert Howard from Duncan, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Modular electro-hydraulic downhole control system
#2 | 2011-09-01Pressure-activated valve for hybrid coiled tubing jointed tubing tool string
#3 | 2010-06-03Apparatus and method for orienting a wellbore servicing tool
#4 | 2008-07-17Connector having offset radius grooves
2788010 ⎘