Source: http://www.google.co.uk/patents/US7434632
Timestamp: 2017-11-18 12:23:18
Document Index: 782202689

Matched Legal Cases: ['Application No. 0503934', 'Application No. 0504304', 'Application No. 99945376', 'application No. 04025232', 'application No. 04025233', 'application No. 04025234']

Patent US7434632 - Roller cone drill bits with enhanced drilling stability and extended life of ... - Google Patents
Roller cone drill bits may be formed with cutting elements and cutting structures having cutting element profile angles selected to minimize cone wobble and improve life of associated bearings and seals. Normal force axes of the cutting elements may intersect with each other as a force center. Crest...http://www.google.co.uk/patents/US7434632?utm_source=gb-gplus-sharePatent US7434632 - Roller cone drill bits with enhanced drilling stability and extended life of associated bearings and seals
Publication number US7434632 B2
Application number US 10/919,990
Also published as CN1664300A, CN1664300B, US7624823, US20050194191, US20080029308
Publication number 10919990, 919990, US 7434632 B2, US 7434632B2, US-B2-7434632, US7434632 B2, US7434632B2
Patent Citations (105), Non-Patent Citations (77), Referenced by (9), Classifications (9), Legal Events (3)
US 7434632 B2
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8 Brief Communication from European Patent Office enclosing letter from the opponent dated Dec. 2, 2004.
9 Brief Communication from European Patent Office enclosing letter from the opponent of Oct. 13, 2004.
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US8020637 30 Jun 2009 20 Sep 2011 Schlumberger Technology Corporation Downhole lubrication system
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US8818779 * 21 Dec 2010 26 Aug 2014 Baker Hughes Incorporated System and methods for real-time wellbore stability service
US20100326735 * 30 Jun 2009 30 Dec 2010 Hall David R Downhole Lubrication System
US20100326736 * 30 Jun 2009 30 Dec 2010 Hall David R Downhole Lubrication System
US20110153296 * 21 Dec 2010 23 Jun 2011 Baker Hughes Incorporated System and methods for real-time wellbore stability service
U.S. Classification 175/57, 175/341, 175/431, 76/108.2
International Classification E21B10/08, E21B41/00, E21B10/16