LandOfFree - US Patents - Listing for Boring or penetrating the earth

Boring or penetrating the earth – Processes

Multi-stage diffuser nozzle

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – With tool shaft having plural passages for drilling fluid

Multi-walled drill string for exploration-sampling drilling syst

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

Multidirectional drill bit cutter

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Concave-shaped charge

Multiphased through tubing stripgun

Boring or penetrating the earth – Processes – Boring with specific fluid

Multiple air hammer apparatus and excavating direction...

Boring or penetrating the earth – Below-ground impact members – Resiliently biased

Multiple blow percussion drill assembly with rapid field mainten

Boring or penetrating the earth – Tool shaft advanced relative to guide insertable in...

Multiple branch completion with common drilling and casing templ

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along...

Multiple cam directional controller for steerable rotary drill

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

Multiple cutter rotary hammer bit

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

Multiple diameter cutting elements and bits incorporating...

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

Multiple diamond layer polycrystalline diamond composite cutters

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

Multiple diamond layer polycrystalline diamond composite cutters

Boring or penetrating the earth – Boring without earth removal

Multiple force hole forming device

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

Multiple grade carbide for diamond capped insert

Boring or penetrating the earth – Processes

Multiple impact jar assembly and method

Boring or penetrating the earth – With signaling – indicating – testing or measuring

Multiple inserts of different geometry in a single row of a bit

Boring or penetrating the earth – With signaling – indicating – testing or measuring

Multiple inserts of different geometry in a single row of a bit

Boring or penetrating the earth – With signaling – indicating – testing or measuring

Multiple inserts of different geometry in a single row of a bit

Boring or penetrating the earth – Processes – Boring with specific fluid

Multiple lateral hydraulic drilling apparatus and method