4. Wells
  5. Packers or plugs
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Actuator

Wells – Packers or plugs – Controllable passage through packer
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Anchor for use in a well

Wells – Packers or plugs – With expanding anchor
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Anchoring assembly

Wells – Packers or plugs – With expanding anchor
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Anchoring device for well tools

Wells – Packers or plugs – With expanding anchor
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Annular isolators for expandable tubulars in wellbores

Wells – Packers or plugs – Cup type
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Annular isolators for expandable tubulars in wellbores

Wells – Packers or plugs – Spaced sealing portions
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Annular isolators for expandable tubulars in wellbores

Wells – Packers or plugs
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Annular isolators for expandable tubulars in wellbores

Wells – Packers or plugs
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Annular safety assembly for an oil well, especially a double pro

Wells – Packers or plugs – With expanding anchor
Patent

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Annular safety system

Wells – Packers or plugs – With expanding anchor
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Annular safety system for oil well

Wells – Packers or plugs – With expanding anchor
Patent

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Annulus pressure operated ratchet device

Wells – Packers or plugs – With detachable setting means
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Anti-extrusion device for downhole applications

Wells – Packers or plugs – With expanding anchor
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Anti-kick, anti-fall running tool and instrument hanger and tubi

Wells – Packers or plugs – With expanding anchor
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Apparatus for amplifying a load

Wells – Packers or plugs – With expanding anchor
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Apparatus for cleansing well liner and adjacent formations

Wells – Packers or plugs – Spaced sealing portions
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Apparatus for controlling inflation fluid to and from inflatable

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Apparatus for controlling the annulus of an inner string and...

Wells – Packers or plugs
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Apparatus for dewatering boreholes

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

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Apparatus for installing a liner within a well bore

Wells – Packers or plugs – With controllable passage between central chamber and space...
Patent

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