Patents by Inventor Marc Lacroix

Marc Lacroix 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).

  • Publication number: 20040191783
    Abstract: A method and kit comprising reagents for detection and/or quantification of polynucleotide or polypeptide sequences potentially present in a sample, said sequences representing the gene expression associated with different cell phenotypes and functions and differentiating the gene expressed in cancer tissue compared to normal or reference material. The method and kit are especially suited for the identification and/or characterization of cancer tissues and for follow up of patient treatments.
    Type: Application
    Filed: March 31, 2003
    Publication date: September 30, 2004
    Inventors: Guy Leclercq, Jose Remacle, Marc Lacroix, Nathalie Zammatteo, Francoise de Longueville
  • Publication number: 20040102935
    Abstract: The invention concerns a method for regulating a property of a product derived from a chemical transformation process, consisting in: a) modelling the relationship between said property and characteristic physical quantities of the process; b) fixing a set point value for said property; c) introducing said set point value in a regulation system based on the model obtained in (a) so a to apply to the process at least a physical quantity calculated from said set point value; d) calculating with a model defined in (a), corrected by a factor taking into account the delay, of a model value of the property of the product corresponding to the characteristic physical quantity/quantities defined by the regulation system; e) continuously measuring the real value of the property and the model value of the property of the product; f) determining the difference between said real value and the model value of the property of the product; g) using said difference, after filtering, to adapt the set point value so as to align
    Type: Application
    Filed: October 20, 2003
    Publication date: May 27, 2004
    Inventors: Marc Lacroix, Yves Hontoir
  • Publication number: 20040011944
    Abstract: The invention concerns an optocoupler. The optocoupler includes a substrate made of optically opaque electrically insulating material metallized to provide conductive traces on a top surface thereof which are electrically linked to metal pads on a bottom surface. A cadmium sulfoselenide photoresistor having an active surface is placed over the substrate with the active surface facing the substrate where the photoresistor has two electrodes. Metal leads connect each of the two electrodes of the photoresistor to two metallized traces on the substrate. A light emitting diode (LED) chip is mounted on the substrate facing the active surface of the photoresistor. The LED chip has a top and bottom electrode, where the bottom electrode is electrically attached to a third metallized trace and the top electrode is wire bonded to a fourth metallized trace. A cover made of optically opaque material is fixed to the substrate so as to enclose the photoresistor and the LED chip in a light tight enclosure.
    Type: Application
    Filed: December 6, 2002
    Publication date: January 22, 2004
    Applicant: Silonex, Inc.
    Inventors: Fred Rohrbacher, Michel Chiasson, Marc Lacroix
  • Patent number: 5706180
    Abstract: An electronic device (1) includes a set of boards (2) carrying electronic components (3). The boards are mounted so as to be separated from and parallel to one another. The electronic device (1) is capable of withstanding shocks in a defined direction approximately orthogonal to the planes of the boards (2). The electronic device (1) also includes a protective body (5) made of an elastomeric substance encapsulating the set of boards (2). The elastomeric substance fills the spaces between the boards (2) and forms at least one front shield (6), in the direction of the shocks (E) for the set of boards (2).
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: January 6, 1998
    Assignee: Aerospatiale Societe Nationale Industrielle
    Inventors: Marc Lacroix, Claude Bouyon
  • Patent number: 4631688
    Abstract: A metal body is inspected for defects by relatively longitudinally displacing it and a plurality of pairs of coils connected in respective bridge circuits that are excited with alternating current. The coils are also excited with alternating current so that eddy-current variations caused by defects in the body become impedance variations of the coils which in turn become imbalance signals in the respective bridges. The imbalance signals are demodulated to form respective imbalance voltages which are periodically sampled and the levels of the sampled demodulated voltages are stored. The sampled demodulated voltages of each bridge are averaged to produce respective base lines which are compared with the respective stored levels of each sampled voltage for generation of respective error signals corresponding to the differences. These error signals are compared with a first relatively low threshold corresponding to the smallest defect to be detected and with a second relatively high threshold.
    Type: Grant
    Filed: June 6, 1980
    Date of Patent: December 23, 1986
    Inventors: Bernard Boehm, Marc Lacroix
  • Patent number: 4549646
    Abstract: A device for separation, orientation, and positioning of parts essentially flat in their general shape, characterized by the fact that the parts are supplied in flat position upon a storage rail and that the device includes, in combination, a tilter which can be activated by a piston between an initial, raised position and a second, tilted position, with the tilter including a support forming a continuation of the storage rail when the tilter is in raised position so as to receive the first of parts from the reserve, with stops arresting the rest of the parts, and with the support further including retaining members (9) for preventing the part from being dislodged, while stop pads stop the first part remaining on the rail during tilting of the tilter.
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: October 29, 1985
    Assignee: Regie Nationale des Usines Renault
    Inventors: Patrick Le Tiec, Marc Lacroix
  • Patent number: 4476997
    Abstract: A device is disclosed for separating, orienting and positioning axes including at least one operational flat. The device includes a static chute equipped with a wide bottom opening closed by a drawer which is moved with a back and forth motion from a withdrawn position in which it unveils a narrow opening which is large enough to enable the fall of a single axis onto rolling blades which are extended by descending ramps bringing each axis onto two bearing-sliding blades. The bearing sliding blades cooperate with two push plates, as well as a trap borne by the drawer, to produce the roll of the axis in the desired direction, followed by the slide of that axis without rotation to a selected position.
    Type: Grant
    Filed: June 9, 1982
    Date of Patent: October 16, 1984
    Assignee: Regie Nationale des Usines Renault
    Inventors: Marc Lacroix, Raymond Bienvenu