Patents by Inventor David Yong Zhao

David Yong Zhao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Ear mould and hearing aid with open in-ear receiving device
    Patent number: 8755548
    Abstract: An ear mold, in cooperation with a receiving device which is placed in an ear canal. The ear mold includes a head of the ear mold and a sound transmission device which is connected with the head. The sound transmission device is used for connection with the speaker of the hearing aid. The head of the ear mold is integrated with the sound transmission device. An end of sound transmission device which is connected with the hearing aid is elastic. The part of the sound transmission device which is connected with the head of the ear mold is flexible.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: June 17, 2014
    Assignee: Jiangsu Betterlife Medical Co., Ltd
    Inventors: David Yong Zhao, Jennifer Jinping Zhao
  • EAR MOULD AND HEARING AID WITH OPEN IN-EAR RECEIVING DEVICE
    Publication number: 20130004004
    Abstract: The present patent application discloses an ear mould, working by cooperation with a receiving device which put in ear canal. The ear mould includes a head of the ear mould and a sound transmission device which connected with the head. The sound transmission device is used for connection with the speaker of the hearing aid. The head of the ear mould is integrated with the sound transmission device. An end of sound transmission device which is connected with the hearing aid is elastic. The part of the sound transmission device which is connected with the head of the ear mould is flexible.
    Type: Application
    Filed: July 19, 2010
    Publication date: January 3, 2013
    Inventors: David Yong Zhao, Jennifer Jinping Zhao