Patents by Inventor Jean-Jacques Josse

Jean-Jacques Josse 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).

  • Multi-drain drilling and petroleum production start-up device
    Patent number: 4573541
    Abstract: Multi-drain drilling and petroleum production start-up device.This comprises at least one take-off assembly (11) which is fastened in situ in an outer tube of the well and at least one take-off tube (12 to 14) of which communicates by its lower end with a branched well.The invention is used, in particular, in branched wells.
    Type: Grant
    Filed: August 9, 1984
    Date of Patent: March 4, 1986
    Assignee: Societe Nationale Elf Aquitaine
    Inventors: Jean-Jacques Josse, Guy Pujols, Serge Di Vincenzo