Michael B. Crawford

Person

Montgomery, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Floating plug pressure equalization in oilfield drill bits
- Patent number 8,800,689
- Issue date Aug 12, 2014
- Halliburton Energy Services, Inc.
- Michael B. Crawford
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pressure compensator for drill bit
- Patent number 8,579,046
- Issue date Nov 12, 2013
- Burintekh USA, LLC
- Michael Burl Crawford
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roller cone drill bit with debris diverter plugs
- Patent number 7,543,660
- Issue date Jun 9, 2009
- Halliburton Energy Services, Inc.
- Michael B. Crawford
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roller cone drill bit with debris flow paths through associated sup...
- Patent number 7,484,572
- Issue date Feb 3, 2009
- Halliburton Energy Services, Inc.
- Mark P. Blackman
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
SYMMETRICAL HAR SEAL
- Publication number 20150345226
- Publication date Dec 3, 2015
- Halliburton Energy Services Inc.
- Michael B. Crawford
- E21 - EARTH DRILLING MINING
Information Patent Application
SEAL ASSEMBLY FOR DRILL BIT
- Publication number 20110315453
- Publication date Dec 29, 2011
- ULTERRA DRILLING TECHNOLOGY, L.P.
- Michael Burle Crawford
- E21 - EARTH DRILLING MINING
Information Patent Application
Pressure Compensator for Drill Bit
- Publication number 20100230170
- Publication date Sep 16, 2010
- Burintekh USA, LLC
- Michael Burl Crawford
- E21 - EARTH DRILLING MINING
Information Patent Application
HELICAL CHISEL INSERT FOR ROCK BITS
- Publication number 20100126775
- Publication date May 27, 2010
- Ulterra Drilling Technology L.P.
- Michael Burl Crawford
- E21 - EARTH DRILLING MINING
Information Patent Application
Roller Cone Drill Bit With Enhanced Debris Diverter Grooves
- Publication number 20070261891
- Publication date Nov 15, 2007
- Mark E. Williams
- E21 - EARTH DRILLING MINING
Information Patent Application
Roller Cone Drill Bit With Debris Flow Paths Through Associated Sup...
- Publication number 20070193781
- Publication date Aug 23, 2007
- Mark P. Blackman
- E21 - EARTH DRILLING MINING
Information Patent Application
Roller Cone Drill Bit With Debris Diverter Plugs
- Publication number 20070193779
- Publication date Aug 23, 2007
- Michael B. Crawford
- E21 - EARTH DRILLING MINING

Michael B. Crawford

Person

Patents Grantslast 30 patents

Floating plug pressure equalization in oilfield drill bits

Pressure compensator for drill bit

Roller cone drill bit with debris diverter plugs

Roller cone drill bit with debris flow paths through associated sup...

Patents Applicationslast 30 patents

SYMMETRICAL HAR SEAL

SEAL ASSEMBLY FOR DRILL BIT

Pressure Compensator for Drill Bit

HELICAL CHISEL INSERT FOR ROCK BITS

Roller Cone Drill Bit With Enhanced Debris Diverter Grooves

Roller Cone Drill Bit With Debris Flow Paths Through Associated Sup...

Roller Cone Drill Bit With Debris Diverter Plugs