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

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

Tooth configuration for an earth boring bit

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

Tooth type drill bit with secondary cutting elements and...

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

Toughness optimized insert for rock and hammer bits

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

Tri-cone kerf gage

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

Two cone bit with extended diamond cutters

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

Two cone bit with non-opposite cones

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

Two cone bit with non-opposite cones

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

Two stage large diameter drill bit

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

Two-cone drill bit with enhanced stability

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

Two-cone drill bit with enhanced stability

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

Two-cone drill bit with enhanced stability

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

Ultra hard insert cutters for heel row rotary cone rock bit appl

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

Ultra hard insert cutters for heel row rotary cone rock bit appl

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

Ultrahard composite constructions

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

Uninterrupted drill bit

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

Unitized rotary rock bit

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

Unitized seal for severe service applications

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

Unsegmented rotary rock bit structure and hydraulic fitting

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

Vacuum, vacuum-pressure, or pressure circulation bit having jet-