Paul OUWERKERK

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Rijkswijk, NL

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Patents Grantslast 30 patents

Information Patent Grant
Method of creating an annular seal around a tubular element
- Patent number 7,819,200
- Issue date Oct 26, 2010
- Shell Oil Company
- Erik Kerst Cornelissen
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF CREATING AN ANNULAR SEAL AROUND A TUBULAR ELEMENT
- Publication number 20100206589
- Publication date Aug 19, 2010
- Erik Kerst CORNELISSEN
- E21 - EARTH DRILLING MINING