Patents by Inventor Tsao Ye-Ming

Tsao Ye-Ming 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).

  • Extensible sound case
    Patent number: 5082084
    Abstract: An extensible sound case, comprises a speaker and an extensible sound chest assembly. The sound chest assembly can be extended to increase the space for resonance or drawn together to minimize space occupation.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: January 21, 1992
    Inventor: Tsao Ye-Ming