Boring or penetrating the earth – With bit wear signal generating
Reexamination Certificate
2006-01-17
2006-01-17
Walker, Zakiya (Department: 3676)
Boring or penetrating the earth
With bit wear signal generating
C175S341000, C175S378000
Reexamination Certificate
active
06986395
ABSTRACT:
Roller cone drilling wherein the bit optimization process equalizes the downforce (axial force) for the cones (as nearly as possible, subject to other design constraints).
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Approved Judgment before Hon. Pumfrey, High Court of Justice, Chancery Division, Patents Court, CaseHC04C00114, 00689, 00690, (Halliburtonv.Smith Internl.), Royal Courts of Justice, Strand, London, GB (84 pages), Jul. 21, 2005.
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Baker & Botts L.L.P.
Halliburton Energy Service,s Inc.
Walker Zakiya
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