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

Boring or penetrating the earth – Bit or bit element – With fluid conduit lining or element

Apparatus for drilling a horizontal controlled borehole in the e

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

Apparatus for drilling holes in mine roofs and a roof drill bit

Boring or penetrating the earth – Bit or bit element – With fluid conduit lining or element

Apparatus for establishing hydraulic flow regime in drill bits

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

Apparatus for facilitating removal of a casing of an overburden

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

Apparatus for mounting PCD compacts

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

Apparatus for retrieving metal debris from a well bore

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

Apparatus for retrieving metal objects from a wellbore

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

Apparatus for retrieving metal objects from a wellbore

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

Apparatus for treating rock surrounding a wellbore

Boring or penetrating the earth – Bit or bit element – Noncutting portion forwardly of cutting portion

Apparatus for use in enlarging a borehole

Boring or penetrating the earth – Bit or bit element – Core forming type

Apparatus, system, and method for catching a core

Boring or penetrating the earth – Bit or bit element – With fluid conduit lining or element

Archimedes spiral drill bit

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

Arcuate-shaped inserts for drill bits

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

Arrangement for reducing seal damage between rotatable and stati

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

Arrangement of roller cone inserts

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

Assembly and method for discharging fluid into a drill...

Boring or penetrating the earth – Bit or bit element – With fluid conduit lining or element

Assembly for drilling low pressure formation

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

Asymmetric compact for drill bit

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

Asymmetric diamond impregnated drill bit