Patents Assigned to McGill University
  • Patent number: 7447403
    Abstract: An integrated etched multilayer grating-based wavelength multiplexer/demultiplexer is disclosed wherein an etched multilayer grating structure is monolithically integrated within the optical waveguide stack of the multiplexer/demultiplexer to reflectively diffract an input optical beam. The multilayer grating structure is generally comprised of a series of etched diffractive elements and an etched multilayer reflector, the combined optical response of which providing the desired multiplexing/demultiplexing effect. The etched structures are generally comprised of shallow etch structures in a top surface of the multiplexer/demultiplexer waveguide stack. Monolithically integrated input and output ridge waveguides may also be provided, optionally fabricated in a same etching step as the etched multilayer grating.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: November 4, 2008
    Assignee: McGill University
    Inventors: Andrew G Kirk, Eric Bisaillon
  • Publication number: 20080269341
    Abstract: The present invention relates to methods for the treatment of a disease or condition associated with lipid imbalance, comprising (a) decreasing arachidonic acid (AA) levels, (b) increasing docosahexaenoic acid (DHA) levels, (c) increasing DHA/AA ratio or (d) any combination of (a)-(c) in a subject using fenretinide. The invention also relates to diagnostic and screening methods based on the determination of lipid levels.
    Type: Application
    Filed: December 13, 2006
    Publication date: October 30, 2008
    Applicant: The Royal Institution for the advancement of Learning/MCGILL University
    Inventors: Danuta Radzioch, Claudine Guilbault, Juan Bautista De Sanctis
  • Patent number: 7439035
    Abstract: The invention relates to a substrate and method for the assay of ribonuclease H activity. The substrate comprises a DNA/RNA heteroduplex molecule having fluorophore and quencher molecules in close proximity, which emit a background level of fluorescence in the absence of ribonuclease H activity due to quenching of the fluorophore as a result of fluorescence resonance energy transfer. Ribonuclease H cleavage of the heteroduplex results in an increase in fluorescence emission due to the destabilization and separation of the DNA and RNA molecules and their associated fluorophore and quencher molecules. The assay method of the present invention is suitable for use in screening (e.g. high throughput screening) for modulators, e.g. inhibitors, of the ribonuclease H activity associated with, for example, reverse transcriptase and ribonuclease H enzymes.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: October 21, 2008
    Assignee: McGill University
    Inventors: Michael A. Parniak, Kyung-Lyum Min
  • Patent number: 7440654
    Abstract: The present invention provides a wavelength multiplexer/demultiplexer comprising a plurality of regions of optically permissive material. The plurality of regions are disposed adjacent one another in a side by side relationship in order to define a stratified body. The materials in adjacent regions have differing indexes of refraction. The stratified body has a first surface and a second surface that are positioned in a non-parallel relationship with respect to one another. The first surface is a light-receiving surface, and the second surface is a light-exiting surface.
    Type: Grant
    Filed: November 26, 2004
    Date of Patent: October 21, 2008
    Assignee: McGill University
    Inventor: Andrew Kirk
  • Publication number: 20080256343
    Abstract: A method and system for determining convergence of iterative processes and estimating a scaling factor in decoding processes based on switching activity of the logic circuitry are provided. During execution of an iterative process using logic circuitry comprising logic gates switching activity of a plurality of the logic gates is sensed to determine switching data indicative of a total switching activity of the plurality of the logic gates. The iterative process is iterated using the logic circuitry until convergence is indicated by the switching data. Similarly, a scaling factor for use in decoding processes is determined based on the switching data.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 16, 2008
    Applicant: The Royal Institution for the advancement of Learning/McGill University
    Inventors: Warren J. Gross, Shie Mannor
  • Patent number: 7427220
    Abstract: A control system for a robotic device maneuverable in at least a liquid medium, the system having at least one visual sensor retrieving an image of the device's environment, an image analyzing module receiving the image, determining a presence of an object of a given type therein and analyzing at least one property of the object, a motion calculator determining a desired motion of the device based on the property, and a controller operating a propulsion system of the device to obtain the desired motion. Also, a legged robotic device having a control system including at least one sensor providing data about an environment of the device, the control system using sensor data to determine a desired motion of the device, determining a corresponding required leg motion of each of the legs to produce the desired motion and actuating the legs in accordance with the corresponding required leg motion.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: September 23, 2008
    Assignees: McGill University
    Inventors: Greg Dudek, Chris Prahacs, Shane Saunderson, Philippe Giguere, Junaed Sattar, Michael Jenkin
  • Patent number: 7423114
    Abstract: The invention provides ligands of ganglioside GD2, including peptide ligands such as GGITNYNSALM; YCGGITNYNSACY; YCITNYNSCY; YCGGITNYNCY; YCTNYGVHCY; YCTNYGVCY; GGIANYNTS; YCGGIANYNCY; YCGGIANYNTSCY; and, YCIANYNTCY. GD2 ligands of the invention may for example be used to treat or diagnose diseases such as cancers in which cells express GD2, including neuroblastomas.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: September 9, 2008
    Assignee: McGill University
    Inventors: Martin Gagnon, H. Uri Saragovi
  • Publication number: 20080183409
    Abstract: A method of providing an on-chip high-speed time domain digital analyzer for the characterization and analysis of signals within an integrated circuit is provided. The method involves processing the signal being characterized/analyzed in the digital domain irrespective of it's starting format. The approach performs a voltage-to-time conversion using predetermined voltage thresholds, applying a time amplification to the digital time information, measuring the amplified time difference between events and converting the amplified time difference as required by the characterization/analysis. The method allows the capture of very high-speed signals with high resolution without the requirements of complex and high-speed electronics. As such the on-chip high-speed time domain digital analyzer can function as an oscilloscope, pulse width analyzer, rise time analyzer and even logic analyzer.
    Type: Application
    Filed: January 31, 2007
    Publication date: July 31, 2008
    Applicant: McGill University
    Inventors: Gordon W. Roberts, Mouna Safi-Harab, Mourad Oulmane
  • Publication number: 20080176931
    Abstract: (?)-EGCG, the most abundant catechin, was found to be chemopreventive and anticancer agent. However, (?)-EGCG has at least one limitation: it gives poor bioavailability. This invention provides compounds of generally formulae below, wherein R11, R12, R13, R21, R22, R2, R3, and R4 are each independently selected from the group consisting of —H, and C1 to C10 acyloxyl group; and R5 is selected from the group consisting of —H, C1-C10-alkyl, C2-C10-alkenyl, C2-C10-alkynyl, C3-C7-cycloalkyl, phenyl, benzyl and C3 -C7 -cycloalkenyl, whereas each of the last mentioned 7 groups can be substituted with any combination of one to six halogen atoms; at least one of R11, R12, R13, R21, R22, R2, R3 and R4 is —H, which were found to be more potent than their non-protected counterparts, which can be used as proteasome inhibitors to reduce tumor cell growth.
    Type: Application
    Filed: August 15, 2005
    Publication date: July 24, 2008
    Applicants: The Hong Kong Polytechnic University, Wayne State University, University of South Florida, McGill University
    Inventors: Tak-Hang Chan, Wai-Har Lam, Larry Ming-Cheung Chow, Qing Ping Dou, Deborah Joyce Kuhn, Aslamuzzaman Kazi, Sheng Biao Wan, Kristin R. Landis-Piwowar
  • Patent number: 7399746
    Abstract: The present invention relates to pharmaceutical compositions containing fragments of alpha-1 proteinase inhibitor (API) or chimeric proteins of API and insulin-like growth factor for use in stimulating wound healing.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: July 15, 2008
    Assignee: McGill University
    Inventor: Luis Fernando Congote
  • Patent number: 7393837
    Abstract: The present invention relates to a method of treating metabolic bone diseases in a patient, which comprises the modulation of PEX activity to modulate the bone micro-environmental concentrations of critical bone anabolic agents, namely PTH and PTHrP. The present invention also provides the use Of inhibitors of PEX activity, such as, the use of inhibitors of NEP and/or ECE and/or PEX such as phosphoramidon, and analogs thereof, to modulate and preferably increase PTH/PTHrP levels in bone microenvironment to consequently result in an increase in bone formation, as confirmed by serum bone markers, namely, osteocalcin, to thereby provide a novel method for treating metabolic bone diseases, such as osteomalacia, osteoporosis, osteopetrosis, Paget's disease and X-linked hypophosphatemic rickets.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: July 1, 2008
    Assignee: McGill University
    Inventors: Andrew C. Karaplis, David Goltzman, Mark L. Lipman, Janet E. Henderson
  • Patent number: 7395200
    Abstract: A method and system of providing language interpretation between a first person and a second person in visual contact with one another. The method comprises receiving from the remote language interpreter an audio signal emitted by the interpreter and video images of the interpreter; outputting the audio signal emitted by the interpreter; displaying the video images of the interpreter on a first display viewable by the first person while maintaining visual contact with the second person; and displaying the video images of the interpreter on a second display viewable by the second person while maintaining visual contact with the first person. In the case of sign language, the use of separate displays allows a hearing person and a non-hearing person to face one another while also viewing the interpreter.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: July 1, 2008
    Assignee: McGill University
    Inventor: John Roston
  • Patent number: 7364852
    Abstract: The present invention relates to a human PAB II gene containing transcribed polymorphic GCG repeat, which comprises a sequence as set forth in SEQ ID NO:3, which includes introns and flanking genomic sequence. The allelic variants of GCG repeat of the human PAB II gene are associated with a disease related with protein accumulation in nucleus, such as polyalanine accumulation, a disease related with swallowing difficulties, such as oculopharyngeal muscular dystrophy. The present invention also relates to a method for the diagnosis of a disease with protein accumulation in nucleus, which comprises the steps of: a) obtaining a nucleic acid sample of said patient; and b) determining allelic variants of GCG repeat of the gene of claim 1, and wherein long allelic variants are indicative of a disease related with protein accumulation in nucleus.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: April 29, 2008
    Assignee: McGill University
    Inventors: Guy A. Rouleau, Bernard Brais
  • Patent number: 7358383
    Abstract: The present invention relates to synthetic green tea derived polyphenolic compounds, their modes of syntheses, and their use in inhibiting proteasomal activity and in treating cancers. The present invention is also directed to pharmaceutical compositions useful in methods of inhibiting proteasomes and of treating cancers.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: April 15, 2008
    Assignees: University of South Florida, McGill University, The Hong Kong Polytechnic University
    Inventors: Q. Ping Dou, Tak-Hang Chan, David M. Smith
  • Publication number: 20080077839
    Abstract: The present invention relates to a decoding method and system for stochastic decoding of LDPC codes. Each encoded sample of a set of encoded samples is first scaled by a scaling factor proportional to a noise level of the set of encoded samples. Each of the scaled encoded samples is then converted into a corresponding probability. For each probability a corresponding probability message is the generated by encoding each probability as a sequence of digital bits. Each probability message is then provided to a respective node of a logic circuitry for stochastic decoding. The logic circuitry represents a factor graph of the parity check matrix of the LDPC code. Using the logic circuitry each probability message is processed for determining an estimated sequence of information bits. If an equality node is in a hold state a chosen bit is provided from a corresponding edge memory which is updated by storing output bits from the equality node when the same is in a state other than a hold state.
    Type: Application
    Filed: September 21, 2007
    Publication date: March 27, 2008
    Applicant: McGill University
    Inventors: Warren Gross, Shie Mannor
  • Patent number: 7316731
    Abstract: Contaminant is removed from a gaseous stream, especially an air stream bearing the contaminant, by adsorption on a sorbent which is a resiliently compressible, electrically conductive, activated carbon cloth material, leaving a gaseous stream liberated of the contaminant; the carbon cloth material loaded with the contaminant may be regenerated by desorption of the contaminant; the carbon cloth material loaded with contaminant is housed in a vacuum and electric current is passed through the carbon cloth material generating heat in the cloth material which is effective to desorb the contaminant which is exhausted under vacuum; the level of heat generated is varied as required, typically to develop a temperature of 250 to 500° C. in the cloth material, by varying the compression of the cloth material; desorption is typically achieved in about 30 minutes at a vacuum of 10 Torr or less.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: January 8, 2008
    Assignee: McGill University
    Inventors: Jean-Pierre Farant, Gerald Desbiens
  • Publication number: 20070219346
    Abstract: The present invention provides a glucokinase protein in which the catalytic activity has been disabled in order to enable its use as a glucose sensor. The catalytically disabled glucokinase protein can be used as the glucose sensor in hand-held glucose monitors and in implantable glucose monitoring devices. The glucose sensor can also be incorporated into biomedical devices for the continuous monitoring of glucose and administration of insulin.
    Type: Application
    Filed: November 27, 2006
    Publication date: September 20, 2007
    Applicant: McGill University
    Inventor: Mark Trifiro
  • Patent number: 7262151
    Abstract: Lipo-chito oligosaccharides (LCOs) are produced by culturing rhizobacteria cells in or on a culture medium comprising at least one of: jasmonic acid or a derivative thereof; linoleic acid or a derivative thereof; or linolenic acid or a derivative thereof. Preferably, the rhizobacteria cells are Bradyrhizobium japonicum cells having the identifying characteristics of B. japonicum strain USDA 3. Preferably, the derivative of jasmonic acid is an ester thereof, preferably methyl jasmonate. Also provided are methods for improving LCO production at low temperatures, particularly temperatures below 25° C.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: August 28, 2007
    Assignee: McGill University
    Inventors: Donald L. Smith, Fazli Mabood, Hao Zhang
  • Patent number: 7250068
    Abstract: The present invention relates to agriculture. More particularly, the invention relates to a method of increasing photosynthesis of a plant and more particularly of crop plants. In addition, the invention relates to a method of increasing photosynthesis and/or yield in crop plants, comprising an exposure thereof to lipo-chitooligosaccharides, and compositions therefor. Further, the invention relates to an agricultural composition for enhancing a plant crop photosynthetic rate and/or growth thereof comprising a photosynthetic rate-promoting amount of at least one lipo chitooligosaccharide (LCO) together with an agriculturally suitable carrier and methods using same.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: July 31, 2007
    Assignee: McGill University
    Inventors: Donald L. Smith, Balakrishnan Prithiviraj, Xiaomin Zhou, Alfred Souleimanov
  • Publication number: 20070086703
    Abstract: An integrated etched multilayer grating-based wavelength multiplexer/demultiplexer is disclosed wherein an etched multilayer grating structure is monolithically integrated within the optical waveguide stack of the multiplexer/demultiplexer to reflectively diffract an input optical beam. The multilayer grating structure is generally comprised of a series of etched diffractive elements and an etched multilayer reflector, the combined optical response of which providing the desired multiplexing/demultiplexing effect. The etched structures are generally comprised of shallow etch structures in a top surface of the multiplexer/demultiplexer waveguide stack. Monolithically integrated input and output ridge waveguides may also be provided, optionally fabricated in a same etching step as the etched multilayer grating.
    Type: Application
    Filed: October 19, 2006
    Publication date: April 19, 2007
    Applicant: McGill University
    Inventors: Andrew Kirk, Eric Bisaillon