Patents by Inventor Michael Petrella

Michael Petrella 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).

  • Handheld audio player with equalizer
    Publication number: 20060280051
    Abstract: A handheld audio player configured to alter the relative amplitude of a selected frequency band or plurality of frequency bands of an audio playback generated by the audio player, the audio player including a housing, a control for operating the audio player and an interface, the interface configured to be manually manipulated by a user to affect the altering of the relative amplitude, such interface being a slider bar.
    Type: Application
    Filed: May 24, 2005
    Publication date: December 14, 2006
    Inventor: Michael Petrella