Patents by Inventor Thierry Lesage

Thierry Lesage 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).

  • Patent number: 5363692
    Abstract: A device and method for enabling an evaluation of an ability of a body containing at least one product to expel at least a portion of the product. The body, for example, a rock sample is placed adjacent to a reservoir and a pressure gradient is effected between the body and the reservoir so as to result in at least a portion of the product being expelled from the body.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: November 15, 1994
    Assignee: Institut Francais du Petrole
    Inventors: Eric Lafargue, Jean Espitalie, Thierry Lesage
  • Patent number: 5174966
    Abstract: A laboratory device and method are adapted to subject a same rock sample to successive liquid treatments without any intermediary handling of the sample. The device combines a chamber comprising a first part fitted with an inlet for introducing a rock sample and liquid reagents into the chamber; a heater for regulating the temperature in the chamber and a plug fitted within an open port for protecting the chamber from an overpressure. The first part also comprises means for stirring the contents of the chamber including a liquid by introducing gas as bubbles into the liquid. A second part of the chamber is located under the first part and a selective filtering unit is interposed between the first and second parts of the chamber, the filter has a porosity selected for retaining organic material contained in the sample.
    Type: Grant
    Filed: August 14, 1990
    Date of Patent: December 29, 1992
    Assignee: Institut Francis du Petrole
    Inventors: Bernard Durand, Thierry Lesage, Jean-Claude Monin, Jean-Max Charpentier
  • Patent number: 5167139
    Abstract: A method and device are disclosed for assessing the aptitude that a body has in opposing the passage of a fluid product, the method includes the following steps: the body is placed between two reservoirs, one being a transmitter containing the product and the other being a reservoir receiving the part of the product passing through the body, the body separating the reservoirs and being adjacent each of them, a pressure gradient is formed between the reservoirs, this gradient causing the movement towards the receiving reservoir of at least a part of the product contained in the reservoir transmitting through the body, and the part of the product recovered in the reservoir is analyzed.
    Type: Grant
    Filed: December 28, 1990
    Date of Patent: December 1, 1992
    Assignee: Institut Francais du Petrole
    Inventors: Eric Lafargue, Jean Espitalie, Thierry Lesage