LandOfFree - US Patents - Listing for Boring or penetrating the earth

Boring or penetrating the earth – With heating or cooling drilling fluid

Tubing carried perforating gun with insulation jacket

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With position orienting or indicating

Tubing conveyed perforating gun electrical detonator

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With wall engaging packer or anchor

Tubing pressure operated initiator for perforating in a well bor

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With wall engaging packer or anchor

Tubing pressurized firing apparatus for a tubing conveyed perfor

Boring or penetrating the earth – Wedging slip assembly for supporting a pipe or rod

Tubing spider

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Measuring or indicating drilling fluid rate of flow

Tubing-conveyed external gauge carriers

Boring or penetrating the earth – With below-ground tool drive prime mover – With positive connection between tool and support shaft for...

Tubular actuator component for use in a drill string

Boring or penetrating the earth – With tool shaft detail – Helix or helically arranged structure

Tubular drill string member with contoured circumferential surfa

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Tubular drill string member with contoured circumferential surfa

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Tubular element for use in a rotary drilling assembly

Boring or penetrating the earth – Processes

Tubular element for use in a rotary drilling assembly and method

Boring or penetrating the earth – With orienting or racking means for unconnected tools or...

Tubular handling system for oil drilling rigs

Boring or penetrating the earth – Bit or bit element – Casing shoe type

Tubular piling apparatus and method

Boring or penetrating the earth – Below-ground impact members – Resiliently biased

Tubular spring slip-joint and jar

Boring or penetrating the earth – With magazine for successively moving unconnected – oriented...

Tubular transfer system

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Tubulars for curved bore holes

Boring or penetrating the earth – Natural vibration characteristic of an element of boring...

Tuned support for cutting elements in a drag bit

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

Tungsten carbide nickel- chromium alloy hard member and...

Boring or penetrating the earth – Boring without earth removal

Tunneling drill bit