CHARLES GRIGOR

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HOUSTON, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Milling cutter having undulating chip breaker
- Patent number 9,512,690
- Issue date Dec 6, 2016
- Smith International, Inc.
- Charles Grigor
- E21 - EARTH DRILLING MINING
Information Patent Grant
System and method to facilitate the drilling of a deviated borehole
- Patent number 9,347,268
- Issue date May 24, 2016
- Smith International, Inc.
- Charles Grigor
- E21 - EARTH DRILLING MINING
Information Patent Grant
Vibrating downhole tool
- Patent number 7,708,088
- Issue date May 4, 2010
- Smith International, Inc.
- Ian Allahar
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
MILLING CUTTER HAVING UNDULATING CHIP BREAKER
- Publication number 20140166305
- Publication date Jun 19, 2014
- Smith International, Inc.
- Charles Grigor
- E21 - EARTH DRILLING MINING
Information Patent Application
SYSTEM AND METHOD TO FACILITATE THE DRILLING OF A DEVIATED BOREHOLE
- Publication number 20130168151
- Publication date Jul 4, 2013
- Smith International, Inc.
- CHARLES GRIGOR
- E21 - EARTH DRILLING MINING
Information Patent Application
VIBRATING DOWNHOLE TOOL
- Publication number 20090266612
- Publication date Oct 29, 2009
- Smith International, Inc.
- Ian Allahar
- E21 - EARTH DRILLING MINING