4. Measuring and testing
  5. Borehole or drilling
  6. Fluid flow measuring or fluid analysis

Edward Harrigan

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Apparatus and method for controlling the pressure of fluid...

Wells – Processes – Sampling well fluid
Reexamination Certificate

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Apparatus and method for controlling the pressure of fluid...

Wells – Processes – Placing fluid into the formation
Reexamination Certificate

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Apparatus and method for sampling formation fluids above the bub

Measuring and testing – Borehole or drilling – Fluid flow measuring or fluid analysis
Patent

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Coring bit and method for obtaining a material core sample

Boring or penetrating the earth – Boring without earth removal – Combined with earth removal
Reexamination Certificate

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Coring bit motor and method for obtaining a material core...

Boring or penetrating the earth – Automatic control – Of boring means including a below-ground drive prime mover
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1201077

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