LandOfFree - US Patents - Listing for Wells

Cup tool with three-part packoff for a high pressure mandrel

Cup tool, cup tool cup and method of using the cup tool

Cup type casing packer cementing shoe

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

Curved flapper and seat for a subsurface saftey valve

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

Curved flapper valve

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

Curved flapper with angle variant seat for a subsurface...

Wells – Processes – Assembling well part

Cut release sub and method

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

Cut-and-close device for pressure pipes in production and supply

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

Cutter blades for rotary tubing tools

Wells – Means for perforating – weakening – bending or separating pipe... – Perforating or splitting cutter

Cutters

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

Cutting and recovery tool

Wells – With below and above ground modification – Eduction pump or plunger in well

Cutting locator tool

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

Cutting matrix and method of applying the same

Utility Patent

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

Cutting tool and method for cutting tubular member

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

Cutting tool and method of cutting an object in a well

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

Cutting tool for cutting well casing

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

Cutting tool for cutting well casing

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

Cutting tool for removing man-made members from well bore

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

Cutting tool for removing materials from well bore