4. Communications, electrical: acoustic wave systems and devices
  5. Seismic prospecting
  6. Land-reflection type

James Robert Birchak

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Acoustic data link and formation property sensor for downhole MW

Boring or penetrating the earth – With signaling – indicating – testing or measuring
Patent

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Acoustic logging while drilling tool to determine bed boundaries

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Tool position direction or inclination measuring or...
Patent

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Acoustic method of connecting boreholes for multi-lateral comple

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Tool position direction or inclination measuring or...
Patent

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Acoustic Transducer for LWD tool

Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent

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Acoustic transducer system for monitoring well production

Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture
Reexamination Certificate

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Profile ID: LFUS-PAI-P-286333

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