Zhenggen Hu

4 Patents

• US126048652026

  Ozone Pet Water Dispenser

  0 cites
• US124651352025

  Ozone Disinfection Bottle or Cup

  0 cites
• USD10919802025

  Pet Training Blanket Controller

  0 cites
• USD09879192023

  Bark Control Device

  0 cites