Enterra Petroleum Equipment Group

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Huntsville, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Gravel pack mandrel system for water-flood operations
- Patent number 5,706,891
- Issue date Jan 13, 1998
- Enterra Petroleum Equipment Group, Inc.
- John D. Schraub
- E21 - EARTH DRILLING MINING
Information Patent Grant
Gas lift bellows construction and process for manufacture thereof
- Patent number 5,421,241
- Issue date Jun 6, 1995
- Enterra Petroleum Equipment Group
- Ben D. Terral
- E21 - EARTH DRILLING MINING