4. Acoustics
  5. Geophysical or subsurface exploration
  6. Well logging

Keith Elder

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Accelerometer transducer used for seismic recording

Acoustics – Geophysical or subsurface exploration – Well logging
Reexamination Certificate

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Apparatus and method for compressing seismic data

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Reexamination Certificate

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Apparatus and method for reducing noise in seismic data

Multiplex communications – Communication techniques for information carried in plural... – Adaptive
Reexamination Certificate

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Apparatus and method for seismic data acquisition

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Reexamination Certificate

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Apparatus and methods for transmitting unsolicited messages...

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2805124

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