Patents by Inventor Joël Lemarchand

Joël Lemarchand 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).

  • Command key with integrated illumination and process for the manufacture of said key
    Patent number: 6416196
    Abstract: The key comprises a raised pressure and command part (1), carrying at least one character label, and means of illuminating the character label. The means of illumination comprise a light-emitting illumination layer (10) located in the base of the raised pressure and command part (1) and extended laterally either by electrical contacts or by electrical connection tracks (12, 13). To manufacture the key, the illumination layer is put in place after having printed the character by serigraphy onto a film which has been stamped out. The invention is used in the production of keypads.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: July 9, 2002
    Assignee: Qwertec
    Inventors: Joël Lemarchand, Martial Cahagne