Johannes Maria Vianney Antonius Koelman

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Rijswijk, NL

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Patents Grantslast 30 patents

Information Patent Grant
System and method for making distributed measurements using fiber o...
- Patent number 9,234,999
- Issue date Jan 12, 2016
- Shell Oil Company
- Johannes Maria Vianney Antonius Koelman
- G01 - MEASURING TESTING
Information Patent Grant
Fiber optic cable with increased directional sensitivity
- Patent number 9,091,589
- Issue date Jul 28, 2015
- Shell Oil Company
- Johannis Josephus Den Boer
- G01 - MEASURING TESTING
Information Patent Grant
Resistivity log correction method
- Patent number 6,098,019
- Issue date Aug 1, 2000
- Shell Oil Company
- Richard Gerrit Hakvoort
- G01 - MEASURING TESTING
Information Patent Grant
Determining a parameter on a component in a composition
- Patent number 5,923,171
- Issue date Jul 13, 1999
- Shell Oil Company
- Johannes Maria Vianney Antonius Koelman
- G01 - MEASURING TESTING
Information Patent Grant
Determining a parameter in a physical system
- Patent number 5,922,611
- Issue date Jul 13, 1999
- Shell Oil Company
- Johannes Maria Vianney Antonius Koelman
- G01 - MEASURING TESTING
Information Patent Grant
Arrangement of the electrodes for an electrical logging system for...
- Patent number 5,608,323
- Issue date Mar 4, 1997
- Shell Oil Company
- Johannes M. V. A. Koelman
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
FIBER OPTIC CABLE WITH INCREASED DIRECTIONAL SENSITIVITY
- Publication number 20140199017
- Publication date Jul 17, 2014
- Johannis Josephus Den Boer
- G02 - OPTICS
Information Patent Application
SYSTEM AND METHOD FOR MAKING DISTRIBUTED MEASUREMENTS USING FIBER O...
- Publication number 20130294720
- Publication date Nov 7, 2013
- Shell Oil Company
- Johannes Maria Vianney Antonius Koelman
- G02 - OPTICS