Zhifeng Hu

5 Patents

• US123980572025

  System and Method for Efficient Nitrogen and Carbon Removal and Phosphorus Recovery of Source-separated Fresh Urine by Biochemical Combination

  BEIJING JIAOTONG UNIVERSITY

  0 cites
• USD10179392024

  Mop Head

  Yongkang Qicailong Industry And Trade Co., Ltd.

  0 cites
• USD10171632024

  Mop Head

  Yongkang Qicailong Industry And Trade Co., Ltd.

  0 cites
• USD10156672024

  Mop Head

  Yongkang Qicailong Industry And Trade Co., Ltd.

  0 cites
• US117144052023

  Systems and Methods for Determining Abnormal Information Associated with a Vehicle

  BEIJING QISHENG SCIENCE AND TECHNOLOGY CO., Ltd.

  0 cites