Richard C. Montgomery

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Midland, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Pump control responsive to voltage-current phase angle
- Patent number 5,362,206
- Issue date Nov 8, 1994
- Automation Associates
- G. Wayne Westerman
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pump-off control by integrating a portion of the area of a dynagraph
- Patent number 5,224,834
- Issue date Jul 6, 1993
- EVI-Highland Pump Company, Inc.
- G. Wayne Westerman
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pump-off controller
- Patent number 4,583,915
- Issue date Apr 22, 1986
- End Devices, Inc.
- Richard C. Montgomery
- E21 - EARTH DRILLING MINING