Zhengyang Feng

3 Patents

• US125805542026

  Variation Compensation of Power Semiconductors

  Kabushiki Kaisha Toshiba

  0 cites
• USD10893352025

  Multi-layer Grinding Disc

  ZHENGZHOU ANXIN ABRASIVES CO., Ltd

  0 cites
• USD10802162025

  Combined Hair Curling Tool

  CHANGZHOU FENGHUA E-COMMERCE CO., Ltd

  0 cites