Robert Crispin Porter

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Cypress, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Smart Drop-off tool and hang-off tool for a logging string
- Patent number 9,010,427
- Issue date Apr 21, 2015
- Schlumberger Technology Corporation
- Jonathan Macrae
- G01 - MEASURING TESTING
Information Patent Grant
Smart drop-off tool and hang-off tool for a logging string
- Patent number 8,844,618
- Issue date Sep 30, 2014
- Schlumberger Technology Corporation
- Jonathan Macrae
- G01 - MEASURING TESTING
Information Patent Grant
Flapper valve
- Patent number 8,607,876
- Issue date Dec 17, 2013
- ThruBit, B.V.
- Jonathan Macrae
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Downhole seismic exploration device and apparatus
- Patent number 5,044,460
- Issue date Sep 3, 1991
- Schlumberger Technology Corporation
- Masahiro Kamata
- G01 - MEASURING TESTING
Information Patent Grant
Downhole seismic exploration device and apparatus
- Patent number 4,953,136
- Issue date Aug 28, 1990
- Schlumberger Technology Corporation
- Masahiro Kamata
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Smart Drop-Off Tool and Hang-Off Tool for a Logging String
- Publication number 20140338886
- Publication date Nov 20, 2014
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Jonathan Macrae
- G01 - MEASURING TESTING
Information Patent Application
Flapper Valve
- Publication number 20120205116
- Publication date Aug 16, 2012
- THRUBIT B.V.
- Jonathan Macrae
- E21 - EARTH DRILLING MINING