Patents by Inventor Frederic Voeltzel

Frederic Voeltzel 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).

  • Wedding ring with breaking device
    Patent number: 6370913
    Abstract: A device adaptable to any ring, wedding ring or band, wherein the band (wedding ring or the like) is bored with at least a hole right through the whole cross-section. The hole(s) is (are) bored such that the remaining thickness is slight whatever the direction of the hole(s) relative to the band cross-section. The device is applicable in all cases where the calibration of the breaking strength on a band (wedding ring or the like) is useful.
    Type: Grant
    Filed: December 27, 1999
    Date of Patent: April 16, 2002
    Inventors: Frederic Voeltzel, Philippe Voeltzel, Pierre Voeltzel, Thierry Dubert