Danielle V. Roberts

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Calgary, CA

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Patents Grantslast 30 patents

Information Patent Grant
Methods for applying wear-resistant material to exterior surfaces o...
- Patent number 8,104,550
- Issue date Jan 31, 2012
- Baker Hughes Incorporated
- James L. Overstreet
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shank structure for rotary drill bits
- Patent number 7,861,806
- Issue date Jan 4, 2011
- Baker Hughes Incorporated
- Anton F. Zahradnik
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Drill bits and tools for subterranean drilling
- Patent number 7,836,979
- Issue date Nov 23, 2010
- Baker Hughes Incorporated
- James C. Green
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotary drill bits
- Patent number 7,600,589
- Issue date Oct 13, 2009
- Baker Hughes Incorporated
- Anton F. Zahradnik
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Methods of fabricating rotary drill bits
- Patent number 7,594,454
- Issue date Sep 29, 2009
- Baker Hughes Incorporated
- Anton F. Zahradnik
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
SHANK STRUCTURE FOR ROTARY DRILL BITS
- Publication number 20100012392
- Publication date Jan 21, 2010
- BAKER HUGHES INCORPORATED
- Anton F. Zahradnik
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
DRILL BITS AND TOOLS FOR SUBTERRANEAN DRILLING
- Publication number 20090107730
- Publication date Apr 30, 2009
- James C. Green
- E21 - EARTH DRILLING MINING
Information Patent Application
METHODS FOR APPLYING WEAR-RESISTANT MATERIAL TO EXTERIOR SURFACES O...
- Publication number 20080083568
- Publication date Apr 10, 2008
- James L. Overstreet
- E21 - EARTH DRILLING MINING
Information Patent Application
ROTARY DRILL BITS
- Publication number 20080066970
- Publication date Mar 20, 2008
- BAKER HUGHES INCORPORATED
- Anton F. Zahradnik
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHODS OF FABRICATING ROTARY DRILL BITS
- Publication number 20080066581
- Publication date Mar 20, 2008
- BAKER HUGHES INCORPORATED
- Anton F. Zahradnik
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR