Guido Ernesto Pezzani

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Clackmannanshire, GB

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Patents Grantslast 30 patents

Information Patent Grant
Drive system
- Patent number 7,802,638
- Issue date Sep 28, 2010
- Smith International, Inc.
- Andrew McPherson Downie
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drive system
- Patent number 7,416,034
- Issue date Aug 26, 2008
- Smith International, Inc.
- Andrew McPherson Downie
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drilling turbine
- Patent number 7,204,326
- Issue date Apr 17, 2007
- Smith International, Inc.
- Andrew McPherson Downie
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
Drive System
- Publication number 20080264693
- Publication date Oct 30, 2008
- SMITH INTERNATIONAL, INC.
- Andrew McPherson Downie
- E21 - EARTH DRILLING MINING
Information Patent Application
Drilling turbine
- Publication number 20040200642
- Publication date Oct 14, 2004
- Andrew McPherson Downie
- E21 - EARTH DRILLING MINING
Information Patent Application
Drive system
- Publication number 20040026129
- Publication date Feb 12, 2004
- Andrew McPherson Downie
- E21 - EARTH DRILLING MINING