LandOfFree - US Patents - Listing for Boring or penetrating the earth,Processes

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Dual-edge working surfaces for polycrystalline diamond...

Boring or penetrating the earth – Processes

Reexamination Certificate

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Dual-rotating eccentric drilling apparatus and method

Boring or penetrating the earth – Processes – Boring with specific fluid

Patent

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Dump valve for use with downhole motor

Boring or penetrating the earth – Processes – Boring with specific fluid

Patent

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Dust conveying and collecting system and method

Boring or penetrating the earth – Processes – Boring with specific fluid

Patent

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Dynamic annular pressure control apparatus and method

Boring or penetrating the earth – Processes – Boring with specific fluid

Reexamination Certificate

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Dynamic annular pressure control apparatus and method

Boring or penetrating the earth – Processes – Boring with specific fluid

Reexamination Certificate

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Early formation evaluation tool

Boring or penetrating the earth – Processes – Sampling of earth formations

Reexamination Certificate

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Early formation evaluation tool

Boring or penetrating the earth – Processes – Sampling of earth formations

Reexamination Certificate

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Earth boring apparatus

Boring or penetrating the earth – Processes

Patent

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Earth boring apparatus for geological drilling and coring

Boring or penetrating the earth – Processes – Sampling of earth formations

Patent

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Earth boring drill bit with chip breaker

Boring or penetrating the earth – Processes

Patent

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Earth boring drill bits with casing component drill out...

Boring or penetrating the earth – Processes

Reexamination Certificate

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Earth boring guide

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Patent

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Earth boring system and apparatus

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Patent

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Earth drilling apparatus and method

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Patent

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Earth drilling cuttings processing system

Boring or penetrating the earth – Processes – Boring with specific fluid

Patent

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Earth drilling method and apparatus using multiple hydraulic for

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Patent

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Earth-boring drill bits with enhanced formation cuttings removal

Boring or penetrating the earth – Processes

Patent

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Easy break-out tool joint and method

Boring or penetrating the earth – Processes

Patent

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Electrically conducting an orientation signal in a directionally

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Patent

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