Patents by Inventor Chin Ding Chen

Chin Ding Chen 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).

  • Earphone transfer coupling apparatus
    Publication number: 20030048916
    Abstract: An improved earphone transfer coupling apparatus includes a transfer element and a clip element. After the transfer element is fastened to the clip element, the transfer element may be coupled with an earphone to allow the transfer coupling apparatus inserted in user's ear or clipped on user's ear auricle.
    Type: Application
    Filed: September 13, 2001
    Publication date: March 13, 2003
    Inventor: Chin Ding Chen