Chengqian Chen

5 Patents

• US125415972026

  Electronic Device

  CHINA UNIONPAY CO., Ltd.

  0 cites
• US123143822025

  Model Protection Method and Apparatus, Data Processing Method and Apparatus, and Device and Medium

  CHINA UNIONPAY CO., Ltd.

  0 cites
• US122425962025

  Electronic Device, Trusted Application Calling Method and Apparatus, Device, and Medium

  CHINA UNIONPAY CO., Ltd.

  0 cites
• US120933602024

  Verification Method and Verification System Based on Biometric Feature ID Chain, and User Terminal

  CHINA UNIONPAY CO., Ltd.

  0 cites
• US115443782023

  Tee Access Control Method and Mobile Terminal Implementing Same

  CHINA UNIONPAY CO., Ltd.

  0 cites