Ni Zhu

6 Patents

• US124913192025

  Universal Dosage Verification System and Method for Medical Syringe

  Retractable Technologies, Inc.

  0 cites
• US124587612025

  Dosage Verification System and Method for Safety Syringe

  Retractable Technologies, Inc.

  0 cites
• US122852532025

  Blood Collection Tube Holder with Single Needle

  Retractable Technologies, Inc.

  0 cites
• US122688482025

  Syringe with Flat Indicia Display Surface

  Retractable Technologies, Inc.

  0 cites
• US121618512024

  Combined Medical Device with Sliding Frontal Attachment and Retractable Needle

  Retractable Technologies, Inc.

  0 cites
• US116075042023

  Syringe Exchange Device

  Retractable Technologies, Inc.

  0 cites