Patents Assigned to MDF Instruments USA LLC
  • One-piece diaphragm and ring for stethoscope chestpiece
    Patent number: 11666302
    Abstract: A one-piece diaphragm and ring for a stethoscope chestpiece is disclosed herein. The one-piece diaphragm and ring includes a diaphragm portion having a flat disk shape; and a ring portion connected to an outer periphery of the diaphragm portion, the ring portion being integrally formed with the diaphragm portion, and the ring portion configured to be attached to a rim of a chestpiece body portion. A chestpiece of a stethoscope that includes the one-piece diaphragm and ring is also disclosed herein.
    Type: Grant
    Filed: August 8, 2020
    Date of Patent: June 6, 2023
    Assignee: MDF Instruments USA LLC
    Inventor: Darren Talun Chiao Ting
  • Stethoscope tubing
    Patent number: D926313
    Type: Grant
    Filed: June 2, 2018
    Date of Patent: July 27, 2021
    Assignee: MDF Instruments USA LLC
    Inventors: Darren Talun Chiao Ting, Jonathan Allen Rogers, Lance William Newman