Búsqueda Imágenes Maps Play YouTube Noticias Gmail Drive Más »
Búsqueda avanzada de patentes | Historial web | Iniciar sesión

Patentes

Citada por

Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US403197427 May 197528 Jun 1977Rapidex, Inc.Boring apparatus capable of boring straight holes
US458950427 Jul 198420 May 1986Diamant Boart Societe AnonymeWell bore enlarger
US466246129 Jul 19815 May 1987Fixed-contact stabilizer
US48543996 Ene 19888 Ago 1989Shell Oil CompanyTubular element for use in a rotary drilling assembly
US51743915 Dic 199029 Dic 1992Shell Oil CompanyTubular element for use in a rotary drilling assembly and method
US533784317 Feb 199316 Ago 1994Kverneland Klepp ASHole opener for the top hole section of oil/gas wells
US540285621 Dic 19934 Abr 1995Amoco CorporationAnti-whirl underreamer
US586287120 Feb 199626 Ene 1999Ccore Technology & Licensing Limited, A Texas Limited PartnershipAxial-vortex jet drilling system and method
US60391305 Mar 199821 Mar 2000Square drill collar featuring offset mass and cutter
US63863029 Sep 199914 May 2002Smith International, Inc.Polycrystaline diamond compact insert reaming tool
US639420011 Sep 200028 May 2002Camco International (U.K.) LimitedDrillout bi-center bit
US649427222 Nov 200017 Dic 2002Halliburton Energy Services, Inc.Drilling system utilizing eccentric adjustable diameter blade stabilizer and winged reamer
US660692311 Feb 200219 Ago 2003Grant Prideco, L.P.Design method for drillout bi-center bits
US66095808 May 200226 Ago 2003Smith International, Inc.Polycrystalline diamond compact insert reaming tool
US68806506 Feb 200419 Abr 2005Smith International, Inc.Advanced expandable reaming tool
US729361710 Oct 200613 Nov 2007Smith International, Inc.Polycrystaline diamond compact insert reaming tool