Source: http://www.google.com/patents/US7360612?dq=U.S.+patent+number+7,325,728
Timestamp: 2018-01-16 18:41:24
Document Index: 635657538

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

Patent US7360612 - Roller cone drill bits with optimized bearing structures - Google Patents
A roller cone drill bit may include optimally designed bearing structures and cutting structures. The roller cone drill bit may include three cone assemblies rotatably mounted on respective spindles via respective bearing structures. Each cone assembly may have a respective cutting structure with a minimal...http://www.google.com/patents/US7360612?utm_source=gb-gplus-sharePatent US7360612 - Roller cone drill bits with optimized bearing structures
Publication number US7360612 B2
Application number US 11/202,878
Also published as CN1755061A, CN1755061B, CN101614108A, CN101614108B, US9493990, US20060032674, US20080087471
Publication number 11202878, 202878, US 7360612 B2, US 7360612B2, US-B2-7360612, US7360612 B2, US7360612B2
Inventors Shilin Chen, Ping C. Sui
Patent Citations (100), Non-Patent Citations (78), Referenced by (51), Classifications (10), Legal Events (3)
US 7360612 B2
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US7260514 * Dec 10, 2004 Aug 21, 2007 Smith International, Inc. Bending moment
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U.S. Classification 175/372, 175/40
International Classification E21B10/16, E21B10/22, E21B41/00, E21B10/00
Cooperative Classification E21B10/22, E21B10/16
European Classification E21B10/22, E21B10/16