Patents by Inventor Gregory C. Perna

Gregory C. Perna 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).

  • Microphone sensor
    Patent number: D522499
    Type: Grant
    Filed: January 11, 2005
    Date of Patent: June 6, 2006
    Assignees: Sloan Valve Company, Wynn Design & Development LLC
    Inventors: Martin E. Marcichow, Gregory C. Perna