John Davies

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Edinburgh, GB

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Patents Grantslast 30 patents

Information Patent Grant
Sealing apparatus and method
- Patent number 10,018,011
- Issue date Jul 10, 2018
- Maersk Olie OG Gas A/S
- Hans Johannes Cornelius Maria Van Dongen
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
SEALING APPARATUS AND METHOD
- Publication number 20150267500
- Publication date Sep 24, 2015
- MAERSK OLIE OG GAS A/S
- Hans Johannes Cornelius Maria Van Dongen
- E21 - EARTH DRILLING MINING