Patents by Inventor Cris Herrera

Cris Herrera 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).

  • Cajon instrument
    Patent number: 8115088
    Abstract: A cajon percussion instrument has an open rectangular box structure joined to a striking plate on one side, and to a truncated pyramid structure on the other side, providing a focusing resonating chamber with a rectangular mouth for sound emission.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: February 14, 2012
    Inventor: Cris Herrera
  • CAJON INSTRUMENT
    Publication number: 20110296973
    Abstract: A cajon percussion instrument has an open rectangular box structure joined to a striking plate on one side, and to a truncated pyramid structure on the other side, providing a focusing resonating chamber with a rectangular mouth for sound emission.
    Type: Application
    Filed: June 4, 2010
    Publication date: December 8, 2011
    Inventor: Cris Herrera