Congwen Xu

6 Patents

• USD10936552025

  Screen Door

  0 cites
• USD10936562025

  Footprint Screen Pet Door

  Shenzhen Fengsheng Pet Products Co., Ltd.

  0 cites
• USD10554182024

  Pet Helmet

  0 cites
• USD10514282024

  Smart Pet Door

  0 cites
• USD10211442024

  Cat Flap

  Shenzhen Fengsheng Pet Products Co., Ltd.

  0 cites
• USD10147852024

  Cat Flap

  Shenzhen Fengsheng Pet Products Co., Ltd.

  0 cites