Patents by Inventor Jacques Berthod

Jacques Berthod 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).

  • Spark source spectrographic analysis process and apparatus
    Patent number: 4181852
    Abstract: The spark source spectrographic analysis process and apparatus utilizes an ion source with two electrodes connected to electrical excitation means making it possible to produce discharges between them and means for directing the ions formed in this source to a mass spectrograph, together with means which make it possible for the spectrograph only to analyze the ions produced by discharges having a given direction.
    Type: Grant
    Filed: April 20, 1977
    Date of Patent: January 1, 1980
    Assignee: Commissariat a l'Energie Atomique
    Inventor: Jacques Berthod