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

Rolling cutter drill bit with annular seal rings

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

Rolling cutter drill bit with stabilized insert holes and method

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

Rolling cutter drill bits

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

Rolling cutters for drill bits

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

Rolling-cutter earth-boring bit having predominantly super-hard

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

Rolling-cutter mining bit with relatively soft formation cutting

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

Rotary bit with jet nozzles

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

Rotary cone bit for cutting removal

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

Rotary cone bit with functionally-engineered composite inserts

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

Rotary cone cutter

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

Rotary cone drill bit and method for enhanced lifting of fluids

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

Rotary cone drill bit modular arm

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

Rotary cone drill bit with angled ramps

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

Rotary cone drill bit with contoured inserts and compacts

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

Rotary cone drill bit with enhanced journal bushing

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

Rotary cone drill bit with enhanced thrust bearing flange

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

Rotary cone drill bit with improved bearing system

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

Rotary cone drill bit with improved cutter insert

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

Rotary cone drill bit with improved support arms