Robbie Roberts

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Calgary, CA

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Patents Grantslast 30 patents

Information Patent Grant
Pressure balancing proppant addition method and apparatus
- Patent number 9,664,025
- Issue date May 30, 2017
- Step Energy Services LLC
- Robbie Roberts
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
PRESSURE BALANCING PROPPANT ADDITION METHOD AND APPARATUS
- Publication number 20130168086
- Publication date Jul 4, 2013
- GASFRAC ENERGY SERVICES INC.
- Robbie Roberts
- E21 - EARTH DRILLING MINING