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

Boring or penetrating the earth – Bit or bit element – Magnetized or with magnet

Abradable cutter protection

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

Abrasive cutting element and drill bit

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

Abrasive wear-resistant hardfacing materials, drill bits and...

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

Activated rock cutting assembly

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

Active gauge cutting structure for earth boring drill bits

Boring or penetrating the earth – Bit or bit element – Cutting edges relatively longitudinally movable during...

Adaptive control concept for hybrid PDC/roller cone bits

Boring or penetrating the earth – Bit or bit element – Adjustable cutter element

Adjustable earth boring device

Boring or penetrating the earth – Bit or bit element – Adjustable cutter element

Adjustable gage cutter scraper for tunneling machines

Boring or penetrating the earth – Bit or bit element – With fluid conduit lining or element

Adjustable nozzle

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

Air jet earth-boring bit with non-offset cutters

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

Alternating inclinations of compacts for drill bit

Boring or penetrating the earth – Bit or bit element – Plural separable cutter elements

Annular shim for construction bit having multiple perforations f

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

Anti-balling drill bit

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

Anti-balling earth boring bit

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

Anti-collaring structure for impact bit

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

Anti-mud packing seal gland

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

Anti-tracking earth boring bit with selected varied pitch...

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

Anti-whirl drill bit

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

Anti-whirl drill bit