Larry D. Johnson

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Al Khobar, SA

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Patents Grantslast 30 patents

Information Patent Grant
Split body swelling packer
- Patent number 7,730,940
- Issue date Jun 8, 2010
- Baker Hughes Incorporated
- Jeffery L. Knippa
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Split Body Swelling Packer
- Publication number 20080210418
- Publication date Sep 4, 2008
- Jeffrey L. Knippa
- E21 - EARTH DRILLING MINING