Lee F. Dolman

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Naucalpan De Juarez, MX

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Patents Grantslast 30 patents

Information Patent Grant
Drilling system with drill string valves
- Patent number 8,307,913
- Issue date Nov 13, 2012
- Schlumberger Technology Corporation
- Lee F. Dolman
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DOWNHOLE SENSOR SYSTEM
- Publication number 20090294174
- Publication date Dec 3, 2009
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Richard Harmer
- E21 - EARTH DRILLING MINING
Information Patent Application
DRILLING SYSTEM WITH DRILL STRING VALVES
- Publication number 20090272580
- Publication date Nov 5, 2009
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Lee F. Dolman
- E21 - EARTH DRILLING MINING