Todd Ulrich Chretien, Sr.

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Layfette, LA, US

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Patents Grantslast 30 patents

Information Patent Grant
System for controlling hydrocarbon bearing zones using a selectivel...
- Patent number 8,171,998
- Issue date May 8, 2012
- Petroquip Energy Services, LLP
- William John Darnell
- E21 - EARTH DRILLING MINING
Information Patent Grant
Coiled tubing multi-zone jet frac system
- Patent number 7,926,580
- Issue date Apr 19, 2011
- Petroquip Energy Services, LLP
- William Ryle Darnell
- E21 - EARTH DRILLING MINING