Patents by Inventor Karen F. Liu

Karen F. Liu 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).

  • Antenna for radar or the like
    Patent number: D328464
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: August 4, 1992
    Inventors: Frank H. M. Liu, Karen F. Liu