Zhicheng Chen

3 Patents

• US120488402024

  Safety Injection Device, Injector and Assembly Method Thereof

  NINGBO MEDSUN MEDICAL CO., Ltd.

  0 cites
• USD10161672024

  Ink Refill for Marker

  0 cites
• US116278992023

  Push-type Blood Collection Needle

  NINGBO MEDSUN MEDICAL CO., Ltd.

  0 cites