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Patentes

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Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US393591128 Jun 19743 Feb 1976Dresser Industries, Inc.Earth boring bit with means for conducting heat from the bit's bearings
US396455430 Dic 197422 Jun 1976Smith International, Inc.Temperature-regulated, sealed bearing system for rock drill bits
US42879578 Ago 19808 Sep 1981Cooling a drilling tool component with a separate flow stream of reduced-temperature gaseous drilling fluid
US49269497 Dic 198822 May 1990Drilex Systems, Inc.Thermal shield for drilling motors
US63476759 Mar 200019 Feb 2002Tempress Technologies, Inc.Coiled tubing drilling with supercritical carbon dioxide
US70007119 Feb 200421 Feb 2006CH2M Hill, Inc.
Ruekert & Meilke, Inc.
Horizontal bore cryogenic drilling method
US739024014 Oct 200524 Jun 2008Air Products and Chemicals, Inc.Method of shaping and forming work materials
US739024014 Oct 200524 Jun 2008Air Products and Chemicals, Inc.Method of shaping and forming work materials
US743443914 Oct 200514 Oct 2008Air Products and Chemicals, Inc.Cryofluid assisted forming method
US749396512 Abr 200624 Feb 2009US Synthetic CorporationApparatuses and methods relating to cooling a subterranean drill bit and/or at least one cutting element during use
US751312125 Mar 20047 Abr 2009Air Products and Chemicals, Inc.Apparatus and method for improving work surface during forming and shaping of materials
US76349579 Sep 200522 Dic 2009Air Products and Chemicals, Inc.Method and apparatus for machining workpieces having interruptions
US763718729 Ago 200229 Dic 2009Air Products & Chemicals, Inc.Apparatus and method of cryogenic cooling for high-energy cutting operations
US768167223 Mar 200623 Mar 2010The University of ScrantonCryogenic pulsejet and method of use
US814165614 Ene 200927 Mar 2012US Synthetic CorporationApparatuses and methods relating to cooling a subterranean drill bit and/or at least one cutting element during use
US822037021 Ene 200317 Jul 2012Air Products & Chemicals, Inc.Apparatus and method for machining of hard metals with reduced detrimental white layer effect

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