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Stuart I. Jardine
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Cambridge, GB
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Patents Grants
last 30 patents
Information
Patent Grant
Down hole tool and method
Patent number
6,845,819
Issue date
Jan 25, 2005
Schlumberger Technology Corporation
Michael P. Barrett
E21 - EARTH DRILLING MINING
Information
Patent Grant
Down hole tool and method
Patent number
6,446,718
Issue date
Sep 10, 2002
Schlumberger Technology Corporation
Michael P. Barrett
E21 - EARTH DRILLING MINING
Information
Patent Grant
Downhole tool and method
Patent number
6,405,798
Issue date
Jun 18, 2002
Schlumberger Technology Corporation
Michael P. Barrett
E21 - EARTH DRILLING MINING
Information
Patent Grant
Alarm system for wellbore site
Patent number
5,952,569
Issue date
Sep 14, 1999
Schlumberger Technology Corporation
Timothy Tristam Jervis
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method of warning of pipe sticking during drilling operations
Patent number
5,454,436
Issue date
Oct 3, 1995
Schlumberger Technology Corporation
Stuart I. Jardine
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for determining characteristics of the movemen...
Patent number
4,958,125
Issue date
Sep 18, 1990
Anadrill, Inc.
Stuart Jardine
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method of determining drill bit wear
Patent number
4,928,521
Issue date
May 29, 1990
Schlumberger Technology Corporation
Stuart Jardine
G05 - CONTROLLING REGULATING
Patents Applications
last 30 patents
Information
Patent Application
Down hole tool and method
Publication number
20020096322
Publication date
Jul 25, 2002
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael P. Barrett
E21 - EARTH DRILLING MINING