Sidney J. Isnor

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Calgary, CA

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Patents Grantslast 30 patents

Information Patent Grant
Fixed cutter drill bit for abrasive applications
- Patent number 9,145,739
- Issue date Sep 29, 2015
- Smith International, Inc.
- Carl Hoffmaster
- E21 - EARTH DRILLING MINING
Information Patent Grant
Fixed cutter drill bit for abrasive applications
- Patent number 7,798,256
- Issue date Sep 21, 2010
- Smith International, Inc.
- Carl Hoffmaster
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
GOUGING CUTTER STRUCTURE AND DRILL BIT MADE THEREWITH
- Publication number 20160084010
- Publication date Mar 24, 2016
- Shear Bits, Ltd.
- Timothy P. Beaton
- E21 - EARTH DRILLING MINING
Information Patent Application
FIXED CUTTER DRILL BIT FOR ABRASIVE APPLICATIONS
- Publication number 20120024604
- Publication date Feb 2, 2012
- Carl Hoffmaster
- E21 - EARTH DRILLING MINING
Information Patent Application
FIXED CUTTER DRILL BIT FOR ABRASIVE APPLICATIONS
- Publication number 20110005837
- Publication date Jan 13, 2011
- Smith International, Inc.
- Carl Hoffmaster
- E21 - EARTH DRILLING MINING
Information Patent Application
Fixed cutter drill bit for abrasive applications
- Publication number 20080230278
- Publication date Sep 25, 2008
- Carl Hoffmaster
- E21 - EARTH DRILLING MINING
Information Patent Application
Fixed cutter drill bit for abrasive applications
- Publication number 20070205023
- Publication date Sep 6, 2007
- Carl Hoffmaster
- E21 - EARTH DRILLING MINING