Dwayne D. Leismer

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Basiglio, IT

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Patents Grantslast 30 patents

Information Patent Grant
Subsurface annular safety barrier
- Patent number 7,543,652
- Issue date Jun 9, 2009
- Schlumberger Technology Corporation
- Peter Krawiec
- E21 - EARTH DRILLING MINING
Information Patent Grant
Subsurface annular safety barrier
- Patent number 7,140,447
- Issue date Nov 28, 2006
- Schlumberger Technology Corporation
- Peter Krawiec
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Subsurface Annular Safety Barrier
- Publication number 20070034380
- Publication date Feb 15, 2007
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Peter Krawiec
- E21 - EARTH DRILLING MINING
Information Patent Application
System and Method for Utilizing Nano-Scale Filler in Downhole Appli...
- Publication number 20050161212
- Publication date Jul 28, 2005
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Dwayne D. Leismer
- E21 - EARTH DRILLING MINING
Information Patent Application
Subsurface annular safety barrier
- Publication number 20040129433
- Publication date Jul 8, 2004
- Peter Krawiec
- E21 - EARTH DRILLING MINING