Patents by Inventor Julien LAURENT

Julien LAURENT 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).

  • Headphone
    Patent number: 7110563
    Abstract: Headphones or earphones are commonly known as electro-acoustic transducers used by a single listener. The invention relates to combing insert and non-insert electro-acoustic transducers in a headphone element. In this way a combination of a wide-low frequency reproduction (insert type) and a wide-high frequency reproduction (non-insert type) are obtained.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: September 19, 2006
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Julien Laurent Bergere