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

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

Drill bit having enhanced stability

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Drill bit having hollow cylindrical body and a plurality of PCD

Boring or penetrating the earth – Bit or bit element – Magnetized or with magnet

Drill bit having improved cutter configuration

Boring or penetrating the earth – Bit or bit element – Magnetized or with magnet

Drill bit having improved cutter configuration

Boring or penetrating the earth – Bit or bit element – Magnetized or with magnet

Drill bit having improved cutting element retention system

Boring or penetrating the earth – Bit or bit element – Specific or diverse material

Drill bit having improved cutting structure with varying diamond

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Drill bit having improved hydraulic action for directing drillin

Boring or penetrating the earth – Bit or bit element – Specific or diverse material

Drill bit having large diameter PDC cutters

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Drill bit having offset roller cutters and improved nozzles

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Drill bit having offset roller cutters and improved nozzles

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Drill bit having offset roller cutters and improved nozzles

Boring or penetrating the earth – Bit or bit element – Specific or diverse material

Drill bit having polycrystalline diamond compact cutter with sph

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Drill bit having replaceable nozzles directing drilling fluid at

Boring or penetrating the earth – Bit or bit element – Specific or diverse material

Drill bit having rotational cutting elements and method of...

Boring or penetrating the earth – Bit or bit element – Impact or percussion type

Drill bit having stability enhancing cutting structure

Boring or penetrating the earth – Bit or bit element – With bit guide or bore wall compacting device

Drill bit having the ability to drill vertically and laterally

Boring or penetrating the earth – Bit or bit element – Specific or diverse material

Drill bit having trapezium-shaped blades

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Drill bit including non-plugging nozzle and method for removing

Boring or penetrating the earth – Bit or bit element – Impact or percussion type

Drill bit including one piece cutting head