LandOfFree - US Patents - Listing for Wells,Screens

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Device and system for well completion and control and method...

Wells – Screens

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Device for removal and filtration of drilling fluid

Wells – Screens – Concentric pipes

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Divalent ion tolerant aromatic sulfonates

Wells – Screens – Porous material

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Double walled screen-filter with perforated joints

Wells – Screens – Concentric pipes

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Double walled screen-filter with perforated joints

Wells – Screens – Porous material

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Double walled screen-filter with perforated joints

Wells – Screens – Porous material

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Downhole cable protection device

Wells – Screens – Strip or rod

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Downhole filter

Wells – Screens – Woven mesh

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Downhole screen and method of manufacture

Wells – Screens – Spiral

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Downhole tool suction screen assembly

Wells – Screens – Concentric pipes

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Drilling tool

Wells – Screens – Porous material

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Dual cylinder water well filter and method of using the same

Wells – Screens – Concentric pipes

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

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