4. Communications: electrical
  5. Selective
  6. Interrogation response

Hugh B. Matthews

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Acoustic isolation for a telemetry system on a drill string

Communications: electrical – Selective – Interrogation response
Patent

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Air bearing head displacement sensor and positioner

Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent

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Enthalpy restoration in geothermal energy processing system

Power plants – Utilizing natural heat – Geothermal
Patent

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Geothermal energy control system and method

Pumps – Motor driven – Axial thrust balancing means for rotary pump and motor
Patent

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Geothermal energy control system and method

Power plants – Utilizing natural heat – Geothermal
Patent

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Profile ID: LFUS-PAI-P-483947

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