LandOfFree - US Patents - Listing for Boring or penetrating the earth,Bit or bit element,Nonsymmetrical bit

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Drill bit

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Reexamination Certificate

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Drill bit

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Patent

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Drill bit for directional drilling in cobble formations

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Reexamination Certificate

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Drill bit for impact-assisted directional boring

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Reexamination Certificate

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Drill bit for producing undercuts

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Patent

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Drill bit having enhanced stability

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Patent

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Drill bit with asymmetric gage pad configuration

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Reexamination Certificate

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Drill bits with predictable walk tendencies

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Patent

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Drilling structure with non-axial gage

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Reexamination Certificate

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Drilling tool

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Reexamination Certificate

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Drilling tool having a drill bit with primary and secondary cutt

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Patent

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Dual cutting mill

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Reexamination Certificate

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