4. Electrical computers and digital processing systems: support
  5. System access control based on user identification by...
  6. Pin/password generator device

David Ka-Wai Hui

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System and method for extending secure authentication using...

Electrical computers and digital processing systems: support – System access control based on user identification by... – Pin/password generator device
Reexamination Certificate

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System and method for transferring wireless network access...

Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate

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System and method for transferring wireless network access...

Telecommunications – Radiotelephone system – Security or fraud prevention
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2244546

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