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Real-time drilling optimization based on MWD dynamic...

Boring or penetrating the earth – Automatic control – Of fluid pressure below ground
Reexamination Certificate

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Realtime control of a drilling system using the output from...

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

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Remote control for a drilling machine

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

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Remote lock-out system and method for a horizontal direction...

Boring or penetrating the earth – Automatic control
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Remote lock-out system and method for a horizontal...

Boring or penetrating the earth – Automatic control
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Rock drilling apparatus

Boring or penetrating the earth – Automatic control – Of advance or applied tool weight
Patent

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Rock drilling method

Boring or penetrating the earth – Automatic control
Patent

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Rotary boring machine

Boring or penetrating the earth – Automatic control
Patent

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Rotary drillstring guidance by feedrate oscillation

Boring or penetrating the earth – Automatic control – Of advance or applied tool weight
Patent

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Rotary steerable tool including drill string rotation...

Boring or penetrating the earth – Automatic control – In response to drilling fluid circulation
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