Sudar Chellappa

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Adaptor flange for rotary control device
- Patent number 9,038,729
- Issue date May 26, 2015
- Smith International, Inc.
- Trung Leduc
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
ADAPTOR FLANGE FOR ROTARY CONTROL DEVICE
- Publication number 20120073113
- Publication date Mar 29, 2012
- Smith International, Inc.
- Trung Leduc
- E21 - EARTH DRILLING MINING