Wouter Hugo Van Eek

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Wassenaar, NL

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for extracting minerals through a borehole
- Patent number 4,278,137
- Issue date Jul 14, 1981
- Stamicarbon, B.V.
- Wouter Van Eek
- E21 - EARTH DRILLING MINING
Information Patent Grant
Process and installation for drilling holes in the earth's crust un...
- Patent number 4,191,266
- Issue date Mar 4, 1980
- van Eek; Wouter H.
- Wouter H. van Eek
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and system for winning minerals
- Patent number 3,961,824
- Issue date Jun 8, 1976
- Wouter Hugo Van Eek
- E21 - EARTH DRILLING MINING