Patents by Inventor Jean-Marc Voirpin

Jean-Marc Voirpin 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).

  • Electric incandescent lamp
    Patent number: 6400077
    Abstract: The U-shaped electric incadescent lamp (1) is characterized in that, instead of a bend, one or more kinks (20) are made in the lamp vessel (2) so as to position the first leg (14) and the second leg (16) in a parallel arrangement next to each other at a relatively small distance. The lamp thus obtained is inexpensive, compact and safe.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: June 4, 2002
    Assignee: U.S. Philips Corporation
    Inventors: Jean Pierre Alain Michel, Laurent Claudel, Jean-Marc Voirpin