LandOfFree - US Patents - Listing for Wells

Wells – Valves – closures or changeable restrictors – Longitudinally movable operator

Ball seat sub

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Ball seat with controlled releasing pressure and method setting

Wells – Processes – Perforating – weakening – bending or separating pipe at an...

Ball switch device and method

Wells – Valves – closures or changeable restrictors – Longitudinally movable operator

Ball type shut in tool

Wells – Valves – closures or changeable restrictors – Fluid operated

Ball valve actuating mechanism

Wells – Valves – closures or changeable restrictors – Fluid operated

Ball valve actuating mechanism

Wells – Valves – closures or changeable restrictors – Rotated operator

Ball valve assembly

Wells – Valves – closures or changeable restrictors – Rotated operator

Ball valve housing

Wells – Valves – closures or changeable restrictors – Rotated operator

Ball valve loading apparatus

Wells – Screen with valve – closure – changeable restrictor or portion...

Ball valve safety screen

Wells – Valves – closures or changeable restrictors – Longitudinally movable operator

Ball valve seat and support

Wells – With below and above ground modification – Head for tool – piston or cleaner

Ball valve type injector and catcher apparatus with adjustable f

Wells – Above ground apparatus – Central valve or closure and lateral port

Ball valves

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Ballistically compatible backpressure valve

Wells – Processes – Perforating – weakening – bending or separating pipe at an...

Bar actuated vent assembly

Wells – Processes – Perforating – weakening – bending or separating pipe at an...

Bar actuated vent assembly and perforating gun

Wells – Processes – Producing the well

Barrier orifice valve for gas lift

Wells – Processes – Producing the well

Barrier orifice valve for gas lift

Wells – Packers or plugs – With expanding anchor

Barrier tool for polished bore receptacle