Jean G. Saint Germain

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Cambridge, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Structural element for sonic tools and acoustic isolators
- Patent number 10,024,992
- Issue date Jul 17, 2018
- Halliburton Energy Services, Inc.
- Chung Chang
- G01 - MEASURING TESTING
Information Patent Grant
Cased borehole tool orientation measurement
- Patent number 8,794,317
- Issue date Aug 5, 2014
- Schlumberger Technology Corporation
- Chung Chang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Cased borehole tool orientation measurement
- Patent number 8,141,635
- Issue date Mar 27, 2012
- Schlumberger Technology Corporation
- Chung Chang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Downhole seismic source
- Patent number 7,617,908
- Issue date Nov 17, 2009
- Schlumberger Technology Corporation
- Chung Chang
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
STRUCTURAL ELEMENT FOR SONIC TOOLS AND ACOUSTIC ISOLATORS
- Publication number 20160252639
- Publication date Sep 1, 2016
- Halliburton Energy Services Inc.
- Chung Chang
- G01 - MEASURING TESTING
Information Patent Application
CASED BOREHOLE TOOL ORIENTATION MEASUREMENT
- Publication number 20120145384
- Publication date Jun 14, 2012
- CHUNG CHANG
- E21 - EARTH DRILLING MINING
Information Patent Application
CASED BOREHOLE TOOL ORIENTATION MEASUREMENT
- Publication number 20100089572
- Publication date Apr 15, 2010
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Chung Chang
- E21 - EARTH DRILLING MINING
Information Patent Application
DOWNHOLE SEISMIC SOURCE
- Publication number 20080110691
- Publication date May 15, 2008
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Chung Chang
- G01 - MEASURING TESTING