Patents by Inventor Yu-seng Tseng

Yu-seng Tseng 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).

  • Patent number: D331196
    Type: Grant
    Filed: August 1, 1990
    Date of Patent: November 24, 1992
    Inventor: Yu-seng Tseng