Assignee
CHEUNG WAI KIN
CN·2 granted patents·0 citations·filing 2021–2022
Top patents by PatentIndex Score
2 records- 0139US11804091B2Cloud door lock control system with identification of time varied 2D codes and imagesCHEUNG WAI KIN·Filed 2022·Granted Oct 31, 2023·0 cites·10 claims
- 0233US11783649B2Cloud door lock control system with identification of time varied 2D codesCHEUNG WAI KIN·Filed 2021·Granted Oct 10, 2023·0 cites·7 claims
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