Rogier Cristian Koene

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Delft, NL

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Patents Grantslast 30 patents

Information Patent Grant
Jet excavating device
- Patent number 6,385,868
- Issue date May 14, 2002
- Heerema Holding Construction Inc.
- Rogier Cristian Koene
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Jet excavating device
- Publication number 20010035674
- Publication date Nov 1, 2001
- HEEREMA HOLDING CONSTRUCTION INC.
- Rogier Cristian Koene
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC