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

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

Impact drill bit assembly and replaceable parts thereof

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

Impregnated bit with changeable hydraulic nozzles

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

Impregnated diamond cutting structures

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

Impregnated diamond cutting structures

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

Impregnated diamond drill bit

Boring or penetrating the earth – Bit or bit element – Cutting edge self-renewable during operation

Impregnated drill bits with adaptive matrix

Boring or penetrating the earth – Bit or bit element – Cutting edge self-renewable during operation

Impregnated rotary drag bit

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

Impregnated rotary drag bit and related methods

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

Impregnated type rotary drill bits

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

In or relating to rotary drill bits

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

Inclined chisel inserts for rock bits

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

Inclined chisel inserts for rock bits

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

Inclined leg earth-boring bit

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

Inclined-jet drilling tool

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

Increased projection for compacts of a rolling cone drill bit

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

Insert attack angle for roller cone rock bits

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

Insert chip of oil-drilling tricone bit, manufacturing...

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

Insert for a drill bit incorporating a PDC layer having extended

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

Insert for a mine tool roof bit and a method of drilling therewi