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

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

Drill bit cutting array having discontinuities therein

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

Drill bit cutting element

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

Drill bit cutting element with cooling channels

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

Drill bit cutting elements with selectively positioned wear...

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

Drill bit cutting elements with selectively positioned wear...

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

Drill bit directional nozzle

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Drill bit for directional drilling in cobble formations

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

Drill bit for drilling along an arcuate path

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

Drill bit for drilling along arcuate path

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

Drill bit for drilling rock

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

Drill bit for drilling rock

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

Drill bit for forming a fluid cushion between the side of the dr

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

Drill bit for horizontal directional drilling of rock formations

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Drill bit for impact-assisted directional boring

Boring or penetrating the earth – Bit or bit element – Core forming type

Drill bit for jet assisted rotary drilling

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Drill bit for producing undercuts

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

Drill bit for reinforced concrete

Boring or penetrating the earth – Bit or bit element – Cutting edges facing in opposite axial directions

Drill bit for reverse drilling

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

Drill bit for the rotary-percussive drilling of preferably rock,