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

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

Directional drilling sub

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

Directional drilling system

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

Directional drilling system and method for drilling precise offs

Directional flow nozzle retention body

Boring or penetrating the earth – Processes – Boring horizontal bores

Directional multi-blade boring head

Boring or penetrating the earth – Processes – Boring horizontal bores

Directional multi-blade boring head

Boring or penetrating the earth – Processes – Boring horizontal bores

Directional multi-blade boring head

Reissue Patent

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

Directional well control

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

Directional well drilling

Boring or penetrating the earth – Processes – Boring with specific fluid

Disposal and reclamation of drilling wastes

DLC coating for earth-boring bit seal ring

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

Double bend positive positioning directional drilling system

Double bit assembly and method of using the same

Double seal with lubricant gap between seals for sealed rotary d

Down hole drilling assembly with concentric casing actuated...

Down hole drilling assembly with independent jet pump

Down hole motors and methods for their operation

Boring or penetrating the earth – Processes – Boring with specific fluid

Down hole pressure intensifier and drilling assembly and method

Down hole, hydrodynamic well control, blowout prevention