Patents by Inventor John M. Hsu

John M. Hsu 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).

  • Insect repelling system using feedback
    Patent number: 7362658
    Abstract: An insect repelling system includes (1) a microphone for converting pressure waves generated by a flying insect flapping its wings into electrical signals, and (2) a speaker for generating pressure waves toward the flying insect based on the electrical signals.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: April 22, 2008
    Inventor: John M. Hsu