Patents Assigned to Université Laval
  • Publication number: 20130147071
    Abstract: A method for writing a Bragg grating in a glass optical waveguide is provided. Ultrafast optical pulses are generated, preferably in the femtosecond range and having a writing wavelength in the range of 300 nm to 700 nm and an intensity sufficient to induce a change of refractive index in the waveguide through densification. The optical pulses are diffracted using a phase mask, to generate an interference pattern having a pitch providing a fundamental Bragg resonance corresponding to the target wavelength to be reflected by the grating. The interference pattern is impinged on a region of the waveguide, which is heated to a temperature above a threshold and for a predetermined heating period. Advantageously, the heating step allows the reduction of photoinduced losses which would otherwise be present in the waveguiding properties of the waveguide. Optionally, gratings may be written through the polymer jacket of an optical fiber.
    Type: Application
    Filed: June 15, 2012
    Publication date: June 13, 2013
    Applicant: UNIVERSITE LAVAL
    Inventors: Real Vallee, Martin Bernier
  • Patent number: 8444280
    Abstract: There is provided a process for the preparation of a suspension of magnetic particles in a polar carrier liquid. The process includes the step of: coating the surface of the magnetic particles with an organic ligand having a hydrophilic chain prior to the suspension. For preparing a magnetically deformable mirror, the suspension of magnetic particles in a polar carrier liquid is coated with a reflective surface layer. A ferrofluid includes a suspension of magnetic particles coated with an organic ligand having a hydrophilic chain in a polar carrier liquid.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: May 21, 2013
    Assignee: Universite Laval
    Inventors: Ermanno Borra, Jean-Philippe Déry, Stéphanie Senkow, Anna Ritcey
  • Patent number: 8444934
    Abstract: A microfluidic flow cell for removably interfacing with a removable-member for performing a reaction therebetween. The microfluidic flow cell device comprises at least one reaction portion defining with the removable-member a reaction chamber when in an interfaced position thereof. The microfluidic flow cell comprises at least one fluid-receiving portion for receiving a fluid therein and being in fluid communication with the reaction chamber. When the microfluidic flow cell and the removable-member are in the interfaced position, the cell is adapted to allow for the fluid in the fluid-receiving portion to flow to the reaction chamber. Devices, systems and methods comprising this microfluidic flow cell are also disclosed.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: May 21, 2013
    Assignee: Universite Laval
    Inventor: Regis Peytavi
  • Publication number: 20130112643
    Abstract: A movement system includes a bridge crane, a trolley, and a movement device. The movement device includes an attachment portion, a plurality of housings, first and second curved elements, a cable, and a cable angle sensor. The curved elements are pivotally attached to housings and perpendicularly overlap with one another such that a first slot defined in the first curved element is perpendicular to a second slot defined in the second curved element. The first curved element is pivotable about a first axis and the second curved element is configured to pivot about a second axis. The cable extends from the attachment portion and through each of the slots. The cable is pivotable to angularly displace at least one of the curved elements about a respective axis. The cable angle sensor is configured to measure the angular displacement of the at least one of the first and second curved elements.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 9, 2013
    Applicants: Universite Laval, GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: GM GLOBAL TECHNOLOGY OPERATIONS LLC, Universite Laval
  • Publication number: 20130112644
    Abstract: A movement device is moved along an X axis and a Y axis by providing a sensor configured to measure angle of rotation of at least one of a first and a second kinematic link about a respective axis of rotation. A force is imparted on the first and second kinematic links such that an angular displacement of the first and second kinematic links about the respective axis of rotation is achieved. The angular displacement of the first and second kinematic links about the respective axis of rotation is determined. The movement device is moved along the X axis and/or the Y axis in response to the determination of the angle of rotation of the first and second kinematic links about the respective axis of rotation until first and second kinematic links are vertical.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 9, 2013
    Applicants: Universite Laval, GM Global Technology Operations LLC
    Inventors: GM Global Technology Operations LLC, Universite Laval
  • Publication number: 20130112645
    Abstract: A movement system includes a rail, a trolley, and a braking system. The trolley is movably attached to the rail and configured to support the payload. The braking system is operatively attached to the rail. The braking system includes a braking module having a base, operatively attached to the trolley, and a wheel assembly, operatively attached to the base. The wheel assembly has a shaft, a clutch, and a braking wheel. The clutch is rigidly attached to the shaft and configured for rotation with the shaft about the rolling axis. The braking wheel axially surrounds the clutch and is in continuous rolling contact with a surface of the rail. The clutch is configured to selectively allow rotation of the braking wheel relative to the shaft in only one direction of rotation to decelerate movement of the trolley along the rail.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 9, 2013
    Applicants: Universite Laval, GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: GM GLOBAL TECHNOLOGY OPERATIONS LLC, Universite Laval
  • Publication number: 20130112641
    Abstract: A balance assist system includes a support structure, an assist device, a variable balancing system, and a balancing cable. The variable balancing system is configured for moving a mass in a vertical direction along a Z axis. The variable balancing system includes a balance platform, a lever, and a mobile counterweight. The lever is pivotally attached to the balance platform at a fixed pivot point such that the lever is pivotable at the fixed pivot point about a balance axis. The mobile counterweight is movably disposed on the lever relative to the fixed balance axis and movable between a minimum position and a maximum position. The minimum position corresponds to the mass having a minimum weight such that the mass is statically balanced along the Z axis. Likewise, the maximum position corresponds to the mass having a maximum weight such that the mass is statically balanced along the Z axis.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 9, 2013
    Applicants: Universite Laval, GM GLOBAL TECHNOLOGIY OPERATIONS LLC
    Inventors: GM GLOBAL TECHNOLOGY OPERATIONS LLC, Universite Laval
  • Patent number: 8435964
    Abstract: Aortic valve stenosis (AS) is a chronic process related to a progressive mineralization of the aortic root and valve cusps. We found in human AS valves a high level of expression and enzymatic activity of ectonucleotide pyrophosphatase/phosphodiesterase-1 (ENPP-1), which correlated to the degree of mineralization. In vitro, inhibition of ENPP activity with ARL 67156 significantly reduced calcification of isolated valve interstitial cells. In a rat model of cardiovascular calcification, ARL 67156 significantly reduced calcification of the aortic root and valve cusps. This is the first study to demonstrate that increased expression and activity of ENPP-1 promotes the mineralization process in AS valves. Hence, inhibition of ectonucleotidase may represent a novel target of therapy for this frequent and serious cardiovascular disease.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: May 7, 2013
    Assignee: Universite Laval
    Inventor: Patrick Mathieu
  • Publication number: 20130101189
    Abstract: Intensity standardization of MRI data sets aims at correcting scanner-dependent intensity variations. An automatic technique, called STI, which shares the simplicity and robustness of histogram-matching techniques, but also incorporates tissue spatial intensity information, has been discovered. The method comprises registering a medical image to a standard image; applying one or more masks to the image medical and standard images for isolating certain specific image components; determining the most common intensity data pair between the medical and standard images for each isolated image component; calculating a formula that joins the most common intensity data pair of each image component; and interpolating an intensity data adjustment using the formula and applying it to the medical image data to generate a standardized version of the medical image.
    Type: Application
    Filed: July 10, 2011
    Publication date: April 25, 2013
    Applicant: UNIVERSITE LAVAL
    Inventors: Nicolas Robitaille, Simon Duchesne
  • Publication number: 20130090303
    Abstract: The present invention relates to the treatment and/or prevention of aortic valve stenosis (AVS) and valve mineralization. Particularly, the invention provides a target for intervention in the treatment or prevention of AVS through the administration of the P2Y2 receptor agonists. Also, the invention provides means to treat hypertension related to decreased arterial compliance and vascular calcification.
    Type: Application
    Filed: September 13, 2012
    Publication date: April 11, 2013
    Applicant: UNIVERSITE LAVAL
    Inventors: Patrick Mathieu, Nancy Côté
  • Patent number: 8409797
    Abstract: An optical sensor for detecting a target comprising a singlestranded aptamer complementary to said target, and a water-soluble cationic polythiophene derivative of the following formula: wherein “n” is an integer ranging from 6 to 100, is disclosed. The optical sensor allows for the detection of targets selected from the group consisting of potassium ions, small organic molecules, amino acids, proteins, whole cells and nucleotides. The detection is based on the formation of hybrid anionic aptamer/cationic poly-thiophene complexes.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: April 2, 2013
    Assignees: Geneohm Sciences Canada, Inc., Universite Laval
    Inventors: Mario Leclerc, Hoang-Anh Ho, Maurice Boissinot
  • Publication number: 20130076902
    Abstract: A robotic charging station for charging a battery of an electric vehicle includes a base plate, a riser coupled with the base plate and extending substantially transverse to the base plate, and a robotic arm. The robotic arm extends from the riser and supports an end effector. The end effector includes a plurality of electrical contacts configured to couple with a receptacle disposed on the electric vehicle. The robotic arm is configured to move the end effector in three degrees of motion.
    Type: Application
    Filed: May 31, 2012
    Publication date: March 28, 2013
    Applicants: Universite Laval, GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Dalong Gao, Neil David Mc Kay, Matthew J. Reiland, Simon Foucault, Marc-Antoine Lacasse, Thierry Laliberte, Boris Mayer-St-Onge, Alexandre Lecours, Clement Gosselin, David E. Milburn, Linda Y. Harkenrider
  • Patent number: 8392023
    Abstract: A robotic system includes a robot for moving a payload in response to a calculated input force. Sensors in respective sensor housings are connected to a handle, each sensor including a light emitter and receiver. The sensors measure a light beam received by a respective receiver. A controller calculates the calculated input force using received light. Each sensor housing modifies an interruption of the light beam in a sensor when the actual input force is applied, and the controller controls the robot using the calculated input force. A method of controlling the robot includes emitting the light beam, flexing a portion of the sensor housing(s) using the actual input force to interrupt the light beam, and using a host machine to calculate the calculated input force as a function of the portion of the light beam received by the light receiver. The robot is controlled using the calculated input force.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: March 5, 2013
    Assignees: GM Global Technology Operations LLC, Universite Laval
    Inventors: Vincent Duchaine, Noemie Paradis, Thierry Laliberte, Boris Mayer-St-Onge, Clement Gosselin, Dalong Gao
  • Publication number: 20130048075
    Abstract: Photoactive polymers comprising first and second co-monomer repeat units, the first co-monomer repeat unit comprising a moiety selected from the group consisting of an alkylthieno[3,4-c]pyrrole-4,6-dione moiety and a 1,3-dithiophene-5-alkylthieno[3,4-c]pyrrole-4,6-dione moiety, and the second co-monomer repeat unit comprising a moiety selected from the group consisting of a 4,4?-dialkyl-dithieno[3,2-b:2?3?-d]silole moiety, an ethylene moiety, a thiophene moiety, an N-alkylcarbazole moiety, an N-(1-alkyl)dithieno[3,2-b:2?3?-d]pyrrole moiety and a 4,8-dialkyloxylbenzo[1,2-b:3,4-b]dithiophene moiety are described herein. These polymers are suitable for use in photovoltaic cells and field effect transistors.
    Type: Application
    Filed: November 30, 2010
    Publication date: February 28, 2013
    Applicant: UNIVERSITE LAVAL
    Inventors: Mario Leclerc, Ahmed Najari, Yingping Zou
  • Patent number: 8377936
    Abstract: Use of nicotine receptor agonists for treating inflammatory diseases, including a variety of pulmonary diseases. Such agonists have fewer side effects than other anti-inflammatory drugs, such as steroids. Moreover, these agonists can be used alone or in combination with other anti-inflammatory drugs to alleviate pulmonary diseases. For example, a method of treating pulmonary inflammation of an inflammatory disease selected from the group of asthma, interstitial pulmonary fibrosis (IPF), sarcoidosis, hypersensitivity pneumonitis (HP), and bronchiolitis obliterans with organizing pneumonitis (BOOP) in an animal in need thereof having said inflammation, including administering orally or by inhalation to said animal a nicotinic receptor agonist.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: February 19, 2013
    Assignee: Universite Laval
    Inventors: Yvon Cormier, Evelyne Israel-Assayag, Marie-Renée Blanchet
  • Publication number: 20120309777
    Abstract: Compounds of formula (I): wherein R1, R2, R3, R4, R7, R6, R7, R8, R9, A, X and Y as defined herein are provided as useful for the treatment of cancer or for the manufacture of anti-cancer agents.
    Type: Application
    Filed: February 16, 2011
    Publication date: December 6, 2012
    Applicant: UNIVERSITE LAVAL
    Inventors: René C. Gaudreault, Sébastien Fortin
  • Publication number: 20120283125
    Abstract: The present invention relates to the competence of oocytes to fertilization, uterine implantation and development into a living being. The invention describes ovarian markers whose expression is predicative of oocyte competency that are detected and/or measured in follicular fluid, cumulus cells and/or follicular cells of a mammal. Also described are methods for evaluating competence of mammalian oocytes, methods for selecting a mammalian oocyte for assisted reproduction (AR), and screening methods for identifying stimulatory or inhibitory compounds to mammalian oocyte competence.
    Type: Application
    Filed: November 12, 2010
    Publication date: November 8, 2012
    Applicant: UNIVERSITÉ LAVAL
    Inventors: Marc-André Sirard, Mourad Assidi, Mélanie Hamel, Gilles Hamel, Claude Robert, Hana Kovarova
  • Patent number: 8282925
    Abstract: The present invention relates to compounds and methods for modulating, reducing or inhibiting, inflammatory reactions in a patient. Particularly, inflammatory reactions that are targeted by the present invention are cell migration, secretion of toxic products and proteolysis at a site of inflammation. Reduction of inflammation manifestations and reactions occurs by using an anti-S100 polynucleotide or polypeptide inhibitor or antagonist, which is essentially targeted against S100A8, S100A9 or S100A12, alone or in combination with other inhibitors of chemokines or immune modulating products.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: October 9, 2012
    Assignee: Universite Laval
    Inventors: Philippe A. Tessier, Carle Ryckman, Karen Vandal, Pascal Rouleau
  • Publication number: 20120225417
    Abstract: The invention concerns methods and kits for evaluating the semen quality. The invention also concerns compounds and compositions for preserving a sperm sample, especially during cryopreservation. The invention is based on a correlation between sperm phosphodiesterase (PDE) activity and sperm fertility and on the use of selective phosphodiesterase inhibitors, more particularly PDE10 inhibitors.
    Type: Application
    Filed: February 3, 2012
    Publication date: September 6, 2012
    Applicants: I'Alliance Boviteq Inc., Université Laval
    Inventors: François Richard, Christine Guillemette, Juan Pablo Aragon, Audrey Hébert, Pierre Leclerc, Patrick Blondin
  • Publication number: 20120195923
    Abstract: This invention is directed to a skin care composition comprising a laminriacea (brown seaweed) extract and the use of said composition in the treatment of skin aging signs Specifically, it was discovered that a crude extract of the laminariacea Saccharina Longicruris has a strong potential for anti-senescence and anti-cellular aging effect and is efficient to restore the contraction of the collagen network of aged cell lattices to the level of contraction of young cells.
    Type: Application
    Filed: June 17, 2010
    Publication date: August 2, 2012
    Applicant: UNIVERSITE LAVAL
    Inventors: Sylvie L. Turgeon, Laurie-eve Rioux, Martin Beaulieu