Stefan Volberg

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Troisdorf, DE

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Patents Applicationslast 30 patents

Information Patent Application
INSPECTION TOOL FOR A PERFORATING GUN SEGMENT
- Publication number 20200088011
- Publication date Mar 19, 2020
- DYNAenergetics GmbH & Co. KG
- Christian Eitschberger
- E21 - EARTH DRILLING MINING
Information Patent Application
PERFORATING GUN HAVING SELF-CLOSING PENETRATION HOLES
- Publication number 20120198988
- Publication date Aug 9, 2012
- Stefan Volberg
- E21 - EARTH DRILLING MINING