Patents Assigned to SHENZHEN YUNDE TECHNOLOGY CO., LTD.
  • Three-layer tilted head earplugs
    Patent number: D924841
    Type: Grant
    Filed: January 17, 2021
    Date of Patent: July 13, 2021
    Assignee: SHENZHEN YUNDE TECHNOLOGY CO., LTD.
    Inventor: Jinniu Yuan
  • Double layer soundproof earplug
    Patent number: D931437
    Type: Grant
    Filed: September 5, 2020
    Date of Patent: September 21, 2021
    Assignee: SHENZHEN YUNDE TECHNOLOGY CO., LTD.
    Inventor: Jinniu Yuan
  • Triple layer industrial earplug
    Patent number: D932002
    Type: Grant
    Filed: September 5, 2020
    Date of Patent: September 28, 2021
    Assignee: SHENZHEN YUNDE TECHNOLOGY CO., LTD.
    Inventor: Jinniu Yuan