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

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

Land erosion protection on a rock cutter

Boring or penetrating the earth – Below-ground impact members – Fluid-operated

Large bore hydraulic drilling jar

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

Large compact cutter rotary drill bit utilizing directed hydraul

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

Large compact cutter rotary drill bit utilizing directed hydraul

Boring or penetrating the earth – Enlargement of existing pilot throughbore requiring...

Large diameter bit with bridge mounted drive stem

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

Large diameter bit with sweep pickup

Boring or penetrating the earth – With mechanical cleaner for bit or cutter element

Large diameter drill bit

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

Large diameter drill bit

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

Large diameter oil well drilling bit

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

Large diameter rock drill

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Core-retaining or severing means

Large diameter sampler for gathering an undisturbed sample

Boring or penetrating the earth – Enlargement of existing pilot throughbore requiring...

Large shaft over-reamer apparatus and method

Boring or penetrating the earth – Boring by directly applying heat to fluidize or comminute

Laser drilling method and system of fossil fuel recovery

Boring or penetrating the earth – Boring without earth removal

Laser liner creation apparatus and method

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

Laser positioning system for earth boring apparatus

Boring or penetrating the earth – Boring by directly applying heat to fluidize or comminute

Laser spectroscopy/chromatography drill bit and methods

Boring or penetrating the earth – Boring by directly applying heat to fluidize or comminute – Rotating the heating tool

Laser wellbore completion apparatus and method

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

Latchable reaming bit

Boring or penetrating the earth – With tool shaft detail

Latching bit sub