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

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

Male portion, drill bit and threaded joint for percussive...

Boring or penetrating the earth – Bit or bit element – With helical-conveying portion

Masonry bit

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

Masonry drill bit and method of making a masonry drill bit

Boring or penetrating the earth – Bit or bit element – Core forming type

Matrix bit with extended blades

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

Matrix drill bits and method of manufacture

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

Matrix drill bits and method of manufacture

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

Matrix drill bits with back raked cutting elements

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

Matrix hard facing by lost wax process

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

Means for mounting a roller cutter on a drill bit

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

Means for retaining roller cutters on rotary drill bit

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

Means to secure cutting elements on drag type drill bits

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

Mechanical lock to prevent seal ring rotation

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

Mechanically fastened center vacuum roof drill bit

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

Mechanically locked cutters and nozzles

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

Mechanically locked drill bit components

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

Mechanically shaped hardfacing cutting/wear structures

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

Metal cutting tools utilizing gradient composites

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

Metal face seal for an earth-boring bit

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

Metal insert mounting