Qinghua Chen

7 Patents

• USD11183242026

  Cord Organizer

  SHENZHEN QIFEI CHUANGXIANG TECHNOLOGY CO., Ltd

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• USD10705712025

  Storage Strap

  SHENZHEN QIFEI CHUANGXIANG TECHNOLOGY CO., Ltd

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• USD10642572025

  Snorkel Mask

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• USD10630642025

  Snorkel Mask

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• US121648382024

  Intelligent Drawing-model Checking Method and Apparatus

  SHENZHEN XUMI YUNTU SPACE TECHNOLOGY CO., Ltd.

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• US118737192024

  Gas-liquid Spray Dust Settlement System for Fully Mechanized Mining Face

  PINGAN COAL MINING ENGINEERING RESEARCH INSTITUTE CO., Ltd.

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• USD09862352023

  Smartphone Stand

  0 cites