4. Metal working
  5. Method of mechanical manufacture
  6. Electrical device making

John Ryberg

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Formation isolation valve

Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Patent

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High pressure magnet assembly

Metal working – Method of mechanical manufacture – Electrical device making
Patent

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Inductive coupler activated completion system

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

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Mass transfer device

Liquid purification or separation – Filtrate splash plate and/or deflector
Patent

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Methods for evaluating formations using NMR and other logs

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
Patent

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Profile ID: LFUS-PAI-P-740874

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