QINGQUAN LIU

Person

  • SHENZHEN, CN

Patents Grantslast 30 patents

  • Information Patent Grant

    Ear, nose, and throat irrigator

    • Patent number 11,826,534
    • Issue date Nov 28, 2023
    • SHENZHEN ALEX TECHNOLOGY CO., LTD
    • Qingquan Liu
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

  • Information Patent Application

    EAR CLEANING DEVICE

    • Publication number 20240066203
    • Publication date Feb 29, 2024
    • SHENZHEN INTELLIGENT DOCTOR TECHNOLOGY CO., LTD
    • QINGQUAN LIU
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    EAR, NOSE, AND THROAT IRRIGATOR

    • Publication number 20230013619
    • Publication date Jan 19, 2023
    • SHENZHEN ALEX TECHNOLOGY CO., LTD
    • QINGQUAN LIU
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE