Patents by Inventor Marcel Royer

Marcel Royer 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).

  • Apparatus for measuring thermodynamic characteristics of a hydrocarbon sample
    Patent number: 5540087
    Abstract: Apparatus for measuring thermodynamic characteristics of a hydrocarbon sample, comprising at least one measurement cell (12; 14) intended to be selectively connected to a gas gauge (82); the gas gauge being capable of being selectively connected to a gas recovery assembly (98) and a liquid storage assembly (114), the measurement cell (12; 14) comprising a piston/cylinder assembly (16; 20; 18; 22), the piston being movable in the cylinder under the action of a jack (24; 26).
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: July 30, 1996
    Assignee: Elf Aquitaine Production
    Inventors: Jacques Bickert, Karim Chaouche, Marcel Royer, Jose Sanchez