Edward Wayne Welch, Jr.

Follow

Person

Broken Arrow, OK, US

People

Patents Grantslast 30 patents

Information Patent Grant
Downhole hydraulic control system with failsafe features
- Patent number 7,694,742
- Issue date Apr 13, 2010
- Baker Hughes Incorporated
- Darren E. Bane
- E21 - EARTH DRILLING MINING
Information Patent Grant
Control line hydrostatic minimally sensitive control system
- Patent number 7,552,774
- Issue date Jun 30, 2009
- Baker Hughes Incorporated
- David Z. Anderson
- E21 - EARTH DRILLING MINING
Information Patent Grant
High pressure and temperature seal for downhole use
- Patent number 7,401,788
- Issue date Jul 22, 2008
- Baker Hughes Incorporated
- Ronald D. Williams
- E21 - EARTH DRILLING MINING