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

Multi-piece rotary cone drill bit seal

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

Multiple grade carbide for diamond capped insert

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

Non-circular gauge reaming row inserts

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

Novel cutter elements for drill bits

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

Nozzle assembly for an earth boring drill bit

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

Nozzle bore for high flow rates

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

Nozzle means for rotary drill bits

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

Nozzle orientation for roller cone rock bit

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

Nozzle placement in large diameter earth boring bits

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

Nozzle retention method for rock bits

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

Nozzle retention system for a drill bit

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

Nozzle retention system for rock bits

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

Nutating drill bit

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

O-ring seal for rock bit bearings

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

O-ring seal for rock bit bearings

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

Oil well drilling bit

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

One cone rotary drill bit featuring enhanced grooves

Utility Patent

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

Optimal material pair for metal face seal in earth-boring bits

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

Optimized central PDC cutter and method