Russell Lewis

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Humble, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Dual stripper rubber cartridge with leak detection
- Patent number 7,950,474
- Issue date May 31, 2011
- Smith International, Inc.
- Trung Leduc
- E21 - EARTH DRILLING MINING
Information Patent Grant
Dual stripper rubber cartridge with leak detection
- Patent number 7,802,635
- Issue date Sep 28, 2010
- Smith International, Inc.
- Trung Leduc
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
ELECTRICAL GENERATOR FOR A CEMENTING MANIFOLD
- Publication number 20130075106
- Publication date Mar 28, 2013
- Lap Tan Tran
- E21 - EARTH DRILLING MINING
Information Patent Application
DUAL STRIPPER RUBBER CARTRIDGE WITH LEAK DETECTION
- Publication number 20100269570
- Publication date Oct 28, 2010
- Smith International, Inc.
- Trung Leduc
- E21 - EARTH DRILLING MINING
Information Patent Application
DUAL STRIPPER RUBBER CARTRIDGE WITH LEAK DETECTION
- Publication number 20090152006
- Publication date Jun 18, 2009
- Smith International, Inc.
- Trung Leduc
- E21 - EARTH DRILLING MINING