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

Flat profile cutting structure for roller cone drill bits

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

Flat seal for a roller cone rock bit

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

Flow channels for tooth type rolling cutter drill bits

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

Flow diverter ring for a rotary drill bit and method

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

Fracture and wear resistant compounds and rock bits

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

Fracture and wear resistant compounds and rock bits

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

Fracture and wear resistant rock bits

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

Free cutting gage insert with relief angle

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

Gage row structure of an earth boring drill bit

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

Gage surface and method for milled tooth cutting structure

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

Gage trimmers and bit incorporating the same

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

Gauge face inlay for bit hardfacing

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

Gauge face inlay for bit hardfacing

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

Graded hardfacing for drill bits

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

Ground drilling machine

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

Hard facing for milled tooth rock bits

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

Hard facing material for rock bits

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

Hardfaced drilling tool joints

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

Hardfacing composition for rock bits