Ricardo Maldonado

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Carrollton, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Electrically operated isolation valve
- Patent number 8,733,448
- Issue date May 27, 2014
- Halliburton Energy Services, Inc.
- Neal G. Skinner
- E21 - EARTH DRILLING MINING
Information Patent Grant
Bi-directional flapper/sealing mechanism and technique
- Patent number 8,689,885
- Issue date Apr 8, 2014
- Halliburton Energy Services, Inc.
- Ricardo R. Maldonado
- E21 - EARTH DRILLING MINING
Information Patent Grant
Open hole formation testing
- Patent number 6,622,554
- Issue date Sep 23, 2003
- Halliburton Energy Services, Inc.
- Kevin R. Manke
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
BI-DIRECTIONAL FLAPPER/SEALING MECHANISM AND TECHNIQUE
- Publication number 20110232916
- Publication date Sep 29, 2011
- Halliburton Energy Services, Inc.
- Ricardo R. MALDONADO
- E21 - EARTH DRILLING MINING
Information Patent Application
ELECTRICALLY OPERATED ISOLATION VALVE
- Publication number 20110232917
- Publication date Sep 29, 2011
- Halliburton Energy Services, Inc.
- Neal G. SKINNER
- E21 - EARTH DRILLING MINING
Information Patent Application
Open hole formation testing
- Publication number 20040003657
- Publication date Jan 8, 2004
- Halliburton Energy Services, Inc.
- Kevin R. Manke
- E21 - EARTH DRILLING MINING
Information Patent Application
Open hole formation testing
- Publication number 20020178804
- Publication date Dec 5, 2002
- Kevin R. Manke
- E21 - EARTH DRILLING MINING