Robert G. MCDONALD

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Conroe, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and methods for counterbalancing a pumping unit
- Patent number 11,174,856
- Issue date Nov 16, 2021
- Weatherford Technology Holdings, LLC
- Clark E. Robison
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulic pumping system with piston displacement sensing and control
- Patent number 11,098,708
- Issue date Aug 24, 2021
- Weatherford Technology Holdings, LLC
- Kenneth J. Schmitt
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus and method of monitoring a rod pumping unit
- Patent number 10,215,012
- Issue date Feb 26, 2019
- Weatherford Technology Holdings, LLC
- Robert G. McDonald
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
HYDRAULIC PUMPING SYSTEM WITH PISTON DISPLACEMENT SENSING AND CONTROL
- Publication number 20210340972
- Publication date Nov 4, 2021
- Weatherford Technology Holdings, LLC.
- Kenneth J. SCHMITT
- E21 - EARTH DRILLING MINING
Information Patent Application
APPARATUS AND METHODS FOR COUNTERBALANCING A PUMPING UNIT
- Publication number 20180128264
- Publication date May 10, 2018
- Weatherford Technology Holdings, LLC.
- Clark E. ROBISON
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
APPARATUS AND METHOD OF MONITORING A ROD PUMPING UNIT
- Publication number 20180016889
- Publication date Jan 18, 2018
- Weatherford Technology Holdings, LLC.
- Robert G. MCDONALD
- E21 - EARTH DRILLING MINING
Information Patent Application
HYDRAULIC PUMPING SYSTEM WITH PISTON DISPLACEMENT SENSING AND CONTROL
- Publication number 20170037714
- Publication date Feb 9, 2017
- AMFIELDS, LP
- Kenneth J. SCHMITT
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...