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

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

Earth boring bit with renewable bearing surface

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

Earth boring bit with shear compression seal

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

Earth boring bit with two piece bearing and rigid face seal asse

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

Earth boring bits with nanocrystalline diamond enhanced elements

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

Earth boring cutting element enhanced retention system

Boring or penetrating the earth – Bit or bit element – Plural separable cutter elements

Earth boring cutting element retention system

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

Earth boring device

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

Earth boring drill bit with matrix displacing material

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

Earth boring drill bit with shell supporting an external drillin

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

Earth boring drill bits made from a low-carbon,...

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

Earth boring machine with crushing rollers

Boring or penetrating the earth – Bit or bit element – Bit with leading portion forming smaller diameter initial bore

Earth drilling tools

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

Earth penetrating rotary drill bit with helical ports

Boring or penetrating the earth – Bit or bit element – With helical-conveying portion

Earth remediation auger

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

Earth removal member with features for facilitating...

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

Earth-boring bit having an improved hard-faced tooth structure

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

Earth-boring bit having an improved hard-faced tooth structure

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

Earth-boring bit having an improved hard-faced tooth structure

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

Earth-boring bit having cobalt/tungsten carbide inserts