LandOfFree - US Patents - Listing for Wells

Wells – Valves – closures or changeable restrictors – Rotated operator

Valve apparatus

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

Valve apparatus for controlling communication between the interi

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

Valve apparatus for use in sand control

Valve apparatus with seal assembly

Wells – Means for perforating – weakening – bending or separating pipe... – Cutter rotates circumferentially of pipe

Valve assembly

Valve assembly

Valve assembly

Wells – Valves – closures or changeable restrictors – Fluid operated

Valve assembly

Wells – Valves – closures or changeable restrictors – Fluid operated

Valve assembly for a subterranean well conduit

Wells – Valves – closures or changeable restrictors – Fluid operated

Valve assembly for an inflatable packer system

Wells – Valves – closures or changeable restrictors – Destructible element

Valve assembly for controlling liquid flow in a wellbore

Wells – Processes – Producing the well

Valve assembly for downhole hydraulically actuated pump

Wells – Above ground apparatus – With valve on cap or head

Valve assembly for hydrocarbon wells

Wells – Packers or plugs – Expanded by confined fluid from central chamber – pump or...

Valve assembly for inflatable packer

Valve assembly for use in a wellbore

Wells – Valves – closures or changeable restrictors – Fluid operated

Valve cage insert

Wells – Valves – closures or changeable restrictors

Valve closing method and apparatus for use with an oil well valv

Wells – Valves – closures or changeable restrictors – Rotated operator

Valve control apparatus

Wells – Submerged well – Testing

Valve control system