Patents by Inventor Dan Koentopp

Dan Koentopp 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).

  • FOCUSED INPUT STRINGED INSTRUMENT
    Publication number: 20080127800
    Abstract: The invention is a stringed instrument having string vibrations transmitted through a bridge directly to an interaction region of a soundboard, to the exclusion of vibrations via other paths.
    Type: Application
    Filed: November 3, 2007
    Publication date: June 5, 2008
    Inventor: Dan Koentopp