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

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

Packer weighted and pressure differential method and apparatus f

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

Packerfoot with bladder assembly having reduced likelihood...

Boring or penetrating the earth – Processes

Pantograph underreamer

Boring or penetrating the earth – Processes

Pantograph underreamer

Boring or penetrating the earth – Processes

Pantograph underreamer

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by longitudinally relatively movable...

Pantograph underreamer and method for forming a well bore...

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

Partially enhanced drill bit

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

Partially enhanced percussive drill bit

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

Partially halogenated ethane solvent removal of oleophylic mater

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

Particle-matrix composite drill bits with hardfacing

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – Fluid or cuttings directing or receiving means engaging bore...

Particulate material intercepting arrangement for a hand held to

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

Passive and active up-drill features on fixed cutter...

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Tool position direction or inclination measuring or...

Path mapping in underground boring tool applications

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

PCD face seal for earth-boring bit

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

PCD face seal for earth-boring bit

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

PCD face seal for earth-boring bit

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

PDC clad drill bit insert

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

PDC cutter and bit

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

PDC cutter element having improved substrate configuration