4. Stock material or miscellaneous articles
  5. Composite
  6. Of metal

Wayne F. Nelson

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Cementing collar and method of operation

Wells – Pistons – fluid driven into well – Surrounding conduit valve or closure opened by piston
Patent

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Device and method for shifting a port collar sleeve

Wells – Processes – Placing or shifting well part
Patent

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Differential valve

Wells – Valves – closures or changeable restrictors – Destructible element
Patent

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Method and tool for controlling fluid flow from a tubing string

Wells – Processes – Placing fluid into the formation
Patent

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Modified ionomer blend and application thereof

Coating processes – With pretreatment of the base – Heating or drying pretreatment
Patent

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Profile ID: LFUS-PAI-P-346853

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