Arie Vliegenthart

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Maassluis, NL

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Patents Grantslast 30 patents

Information Patent Grant
Downhole seal
- Patent number 8,727,027
- Issue date May 20, 2014
- Swellfix BV
- Paul Schilte
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Downhole Seal
- Publication number 20120138315
- Publication date Jun 7, 2012
- Swellfix BV
- John Dewar
- E21 - EARTH DRILLING MINING
Information Patent Application
DOWNHOLE SEAL
- Publication number 20110193291
- Publication date Aug 11, 2011
- Paul Schilte
- E21 - EARTH DRILLING MINING