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

Raise drill with removable stem

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

Raise drill with replaceable stem

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

Randomly-oriented composite constructions

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

Randomly-oriented composite constructions

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

Reamer bit for raise boring

Boring or penetrating the earth – Bit or bit element – Casing shoe type

Reamer shoe

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

Reamer wing for enlarging a borehole below a smaller-diameter po

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

Reamer with stabilizers for use in a wellbore

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

Reamer-stabilizer

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

Reaming apparatus

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

Reaming apparatus and method with ability to drill out...

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

Reaming apparatus and method with enhanced structural...

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

Reaming apparatus for well drilling

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

Reaming tool suitable for running on casing or liner

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

Reconditionable drill bit assembly

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

Reduced erosion nozzle system and method for the use of drill bi

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

Reduced residual tensile stress superabrasive cutters for earth

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

Reduced residual tensile stress superabrasive cutters for...

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

Reinforced abrasive-impregnated cutting elements, drill bits...