Donald Ian Carruthers

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Kirkby in Furness, GB

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Patents Grantslast 30 patents

Information Patent Grant
System and method for wellbore surveying using directional gamma de...
- Patent number 10,495,777
- Issue date Dec 3, 2019
- Gyrodata, Incorporated
- Nigel John Dennis Kilshaw
- G01 - MEASURING TESTING
Information Patent Grant
System and method for wellbore surveying using directional gamma de...
- Patent number 9,977,145
- Issue date May 22, 2018
- Gyrodata, Incorporated
- Nigel John Dennis Kilshaw
- G01 - MEASURING TESTING
Information Patent Grant
Bending of a shaft of a steerable borehole drilling tool
- Patent number 8,579,044
- Issue date Nov 12, 2013
- Gyrodata, Incorporated
- Peter Allen
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
System and Method for Wellbore Surveying Using Directional Gamma De...
- Publication number 20190072690
- Publication date Mar 7, 2019
- GYRODATA, INCORPORATED
- Nigel John Dennis Kilshaw
- G01 - MEASURING TESTING
Information Patent Application
SYSTEM AND METHOD FOR WELLBORE SURVEYING USING DIRECTIONAL GAMMA DE...
- Publication number 20170052275
- Publication date Feb 23, 2017
- GYRODATA, INCORPORATED
- Nigel John Dennis Kilshaw
- G01 - MEASURING TESTING
Information Patent Application
BENDING OF A SHAFT OF A STEERABLE BOREHOLE DRILLING TOOL
- Publication number 20110240368
- Publication date Oct 6, 2011
- GYRODATA, INCORPORATED
- Peter Allen
- E21 - EARTH DRILLING MINING