Double-E Inc.

Organization

Dallas, TX, US

Organizations

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic latch for capillary tubing string
- Patent number 7,363,985
- Issue date Apr 29, 2008
- Double-E Inc.
- Robert L. Heinonen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of and apparatus for securing capillary tubing in a wellhead
- Patent number 6,955,225
- Issue date Oct 18, 2005
- Double-E Inc.
- Robert L. Heinonen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Wellhead for providing structure when utilizing a well pumping system
- Patent number 6,223,819
- Issue date May 1, 2001
- Double-E Inc.
- Robert L. Heinonen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Misaligning wellhead system
- Patent number 5,878,812
- Issue date Mar 9, 1999
- Double-E Inc.
- Robert L. Heinonen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Well leak catcher
- Patent number 5,246,067
- Issue date Sep 21, 1993
- Double-E Inc.
- Robert L. Heinonen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Blowout preventer
- Patent number 4,844,406
- Issue date Jul 4, 1989
- Double-E Inc.
- James A. Wilson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Guide for well pump sucker rod
- Patent number 4,632,468
- Issue date Dec 30, 1986
- Double-E Inc.
- James A. Wilson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Packing assembly for a movable shaft
- Patent number 4,286,791
- Issue date Sep 1, 1981
- Double-E Inc.
- Douglas K. McLean
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Hydraulic latch for capillary tubing string
- Publication number 20070114042
- Publication date May 24, 2007
- Double-E Inc.
- Robert L. Heinonen
- E21 - EARTH DRILLING MINING

Double-E Inc.

Organization

Patents Grantslast 30 patents

Hydraulic latch for capillary tubing string

Method of and apparatus for securing capillary tubing in a wellhead

Wellhead for providing structure when utilizing a well pumping system

Misaligning wellhead system

Well leak catcher

Blowout preventer

Guide for well pump sucker rod

Packing assembly for a movable shaft

Patents Applicationslast 30 patents

Hydraulic latch for capillary tubing string

Trademarklast 30 trademarks