4. Telecommunications
  5. Radiotelephone system
  6. Zoned or cellular telephone system

Randall K. Derr

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Avionics satellite based data message routing and delivery syste

Multiplex communications – Communication over free space – Repeater
Patent

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Satellite based high bandwidth data broadcast

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent

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Voice call group function for a satellite based air traffic...

Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1353680

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