ERC Industries

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Tubing hanger with ball valve in production string
- Patent number 7,275,591
- Issue date Oct 2, 2007
- ERC Industries
- Gregory Wayne Allen
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Casing and tubing hanger system
- Patent number 6,015,009
- Issue date Jan 18, 2000
- ERC Industries
- Jack R. Allen
- E21 - EARTH DRILLING MINING