Patents by Inventor Rocroi Jean-Pierre

Rocroi Jean-Pierre 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).

  • Method and system for acquisition and separation of the effects of electromagnetic fields to predict earthquakes
    Patent number: 4884030
    Abstract: The present invention relates to a system for acquisition and separation of the effects of simultaneous sources of electromagnetic field. According to the invention the system comprises an array of n pick-ups (1a . . . 1e) connected to registration means (2), the minimum number n of pick-ups per array being equal to 2s+2, where s is equal to a number of simultaneous sources to be analysed.
    Type: Grant
    Filed: April 6, 1988
    Date of Patent: November 28, 1989
    Assignee: Compagnie Generale de Geophysique
    Inventors: Charles Naville, Simon Spitz, Rocroi Jean-Pierre