Jianfeng Yan

6 Patents

• USD10773572025

  Electric Hair Trimmer

  0 cites
• US122463932025

  Femtosecond Laser System for Processing Micro-hole Array

  Tsinghua University

  0 cites
• USD10311642024

  Electric Hair Trimmer

  0 cites
• USD10293912024

  Electric Hair Clipper

  0 cites
• USD09987812023

  Breast Pump

  0 cites
• USD09987822023

  Breast Pump

  0 cites