LandOfFree - US Patents - Listing for Wells,Valves, closures or changeable restrictors,Fluid operated

Wells – Valves – closures or changeable restrictors – Fluid operated

Flexible matrix composite actuator for use in subsurface...

Wells – Valves – closures or changeable restrictors – Fluid operated

Flexible piston well safety valve

Wells – Valves – closures or changeable restrictors – Fluid operated

Float collar

Wells – Valves – closures or changeable restrictors – Fluid operated

Float valve assembly for downhole tubulars

Wells – Valves – closures or changeable restrictors – Fluid operated

Floating plate back pressure valve assembly

Wells – Valves – closures or changeable restrictors – Fluid operated

Flow control assembly having a fixed flow control device and...

Wells – Valves – closures or changeable restrictors – Fluid operated

Flow control system

Wells – Valves – closures or changeable restrictors – Fluid operated

Flow control systems and methods

Wells – Valves – closures or changeable restrictors – Fluid operated

Flow reversing apparatus and methods of use

Wells – Valves – closures or changeable restrictors – Fluid operated

Flow tube for use in an equalizing subsurface safety valve

Wells – Valves – closures or changeable restrictors – Fluid operated

Flow-operated valve

Wells – Valves – closures or changeable restrictors – Fluid operated

Fluid control valve

Wells – Valves – closures or changeable restrictors – Fluid operated

Fluid displacement well safety valve

Wells – Valves – closures or changeable restrictors – Fluid operated

Fluid injection valve for wells

Wells – Valves – closures or changeable restrictors – Fluid operated

Fluid level controlled safety valve

Wells – Valves – closures or changeable restrictors – Fluid operated

Fluid pressure actuator for subterranean well apparatus

Wells – Valves – closures or changeable restrictors – Fluid operated

Full bore lined wellbores

Wells – Valves – closures or changeable restrictors – Fluid operated

Full bore sampler valve

Wells – Valves – closures or changeable restrictors – Fluid operated

Full flow bypass valve