Patents Assigned to McMaster University
  • Patent number: 9257601
    Abstract: A thin layer substrate has a plurality of micron sized electrically conductive whisker components which are arranged in parallel and extending from one surface of the substrate to another surface to provide electrically conductive paths through the substrate. Such a substrate may be usable for micron sized LEDs.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: February 9, 2016
    Assignee: McMaster University
    Inventors: Adrian Kitai, Huaxiang Shen
  • Publication number: 20160036366
    Abstract: A double-rotor switched reluctance machine includes a stator, a first rotor, and a second rotor. The stator and the first rotor operate as a first electric machine and the stator and the second rotor operate as a second electric machine. Each electric machine has an output torque profile that fluctuates periodically between a maximum and a minimum instantaneous torque. The double-rotor switched reluctance machine is configured so that when the first and second electric machines are operated at a common electrical frequency, the first and second maximum instantaneous torques are temporally offset, thereby reducing the overall torque ripple of the switched reluctance machine. Additionally, or alternatively, a double-rotor switched reluctance machine is configured so that the first and second rotors are radially offset from each other to reduce a net radial force imposed on the stator by the operation of the first and second electric machines.
    Type: Application
    Filed: July 30, 2015
    Publication date: February 4, 2016
    Applicant: McMaster University
    Inventors: Yinye Yang, Nigel Schofield, Ali Emadi
  • Patent number: 9233083
    Abstract: Therapeutic compositions and methods for treatment of late-onset Gaucher disease are described herein. The compositions comprise compounds having activity as pharmacological chaperones for mutant forms of the beta-glucocerebrosidase. Methods of treatment involve providing therapeutically effective amounts of such compositions to subjects in need thereof.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: January 12, 2016
    Assignees: The Hospital for Sick Children, McMaster University
    Inventors: Don J. Mahuran, Michael B. Tropak, Justin D. Buttner, Jan E. Blanchard, Eric D. Brown
  • Publication number: 20150368367
    Abstract: Hydrophobic CNCs were successfully prepared by grafting amine- and thiol terminated hydrocarbons to CNCs that have been previously coated with plant polyphenols. Hydrocarbons of various chain lengths can be used to tune the hydrophobicity of the modified CNCs. After the surface modification process, CNCs can be easily redispersed in nonpolar solvents highlighting the potential of the hydrophobic CNCs in, for example, CNC reinforced nanocomposites and non-aqueous formulations.
    Type: Application
    Filed: June 22, 2015
    Publication date: December 24, 2015
    Applicant: McMaster University
    Inventors: Zhen Hu, Emily Cranston
  • Publication number: 20150354024
    Abstract: The present application discloses metallophores that complex soluble gold and generate solid gold forms, including gold nanoparticles. In an embodiment, the metallophores are microbial metabolites isolated from organisms that are resistant to gold, or are analogs thereof. Methods of using the metallophores to extract and detect gold, along with detectors comprising the metallophores are disclosed.
    Type: Application
    Filed: January 14, 2014
    Publication date: December 10, 2015
    Applicant: MCMASTER UNIVERSITY
    Inventors: Morgan WYATT, Chad JOHNSTON, Nathan MAGARVEY
  • Patent number: 9174741
    Abstract: A hybrid powertrain for an aircraft may include a drive shaft, the drive shaft, an internal combustion engine to selectably drive the drive shaft, a propeller coupled to the drive shaft and an electric motor having a stator and a rotor and operable to selectably drive the drive shaft. The drive shaft may extend through the electric motor. The rotor may be coupled to the drive shaft to rotate with the drive shaft and the rotor is a flywheel for the internal combustion engine.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: November 3, 2015
    Assignee: McMaster University
    Inventors: Piranavan Suntharalingam, Ali Emadi
  • Patent number: 9175469
    Abstract: A self-reinforced masonry block comprises a main body having opposed substantially parallel stacking surfaces and at least one tubular cell defined therethrough from one stacking surface to the other. At least one confining reinforcement is embedded in the main body to surrounding a corresponding cell. Each confining reinforcement extends substantially entirely along the longitudinal length of its corresponding cell and terminates inwardly of the stacking surfaces. The self-reinforced masonry blocks may be used in construction of a grout-filled, vertically reinforced masonry block wall, with the self-reinforced masonry blocks being used for those portions of the wall where the grouted cells are prone to crushing due to high levels of compressive stress, and conventional unreinforced masonry blocks being used for other portions of the wall. A method for making the self-reinforced masonry blocks is also described.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: November 3, 2015
    Assignee: MCMASTER UNIVERSITY
    Inventors: Hamid Toopchinezhad, Robert Drysdale, Michael Tait
  • Patent number: 9157109
    Abstract: Novel solid-phase biosensors that utilize ink jet printing of biocompatible sol-gel based inks to create sensor strips are reported herein. Biomolecules and other reagents useful in bioassays to detect, for example, pathogenic microorganisms or toxic substances, are immobilized on a substrate, which can be paper based, by layering these substances between two layers of biomolecule compatible sol gel. The sol gel precursor solutions and solutions of the assay reagents are printed from separate nozzles in a layered approach which avoids clogging of the nozzles by the pre-mature gelling of the sol gel precursor solution. In certain embodiments of the application, a capture agent is used to concentrate a compound to be detected in specific areas on the substrate to facilitate detection.
    Type: Grant
    Filed: May 31, 2010
    Date of Patent: October 13, 2015
    Assignee: McMaster University
    Inventors: John D. Brennan, Carlos Filipe, Zakir Hossain, Roger Luckham, Anne Marie Smith, Julie Marie Lebert, Robert Pelton
  • Patent number: 9145136
    Abstract: A powertrain system for a vehicle is provided, including an internal combustion engine, a drivetrain gear for connection to a drivetrain of the vehicle, a gearset connecting the internal combustion engine to the drivetrain gear, a first electric machine connected to the gearset, a second electric machine, and at least one dynamic clutch selectively coupling the second electric machine to the drivetrain gear and the gearset. In a compound mode of operation, the at least one dynamic clutch couples the second electric machine and the gearset. In a split mode of operation, the at least one dynamic clutch couples the second electric machine and the drivetrain gear.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: September 29, 2015
    Assignee: McMaster University
    Inventors: Piranavan Suntharalingam, Ali Emadi
  • Patent number: 9139079
    Abstract: A vehicle powertrain system including a differential gear set, a planetary gear set coupled to the differential gear set, an engine coupled to the planetary gear set to transfer power between the engine and the planetary gear set, a first electric machine coupled to the planetary gear set via a first clutch and selectively engagable, via actuation of the first clutch, to transfer power between the first electric machine and the planetary gear set, and a second electric machine coupled to the planetary gear set via a second clutch and selectively engagable, via actuation of the second clutch, to transfer power between the second electric machine and the planetary gear set.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: September 22, 2015
    Assignee: McMaster University
    Inventors: Piranavan Suntharalingam, Ali Emadi
  • Publication number: 20150263190
    Abstract: Embodiments of the present disclosure provide devices and methods involving the thermal stabilization of microring resonators, such as microring modulators. Power is measured via an on-chip photodetector integrated with a drop port of the microring resonator, providing a local measurement of average power. This average power is employed as a feedback measure to actively control a heater that is integrated with the microring resonator, in order to stabilize the resonant wavelength of the microring resonator in the presence of thermal fluctuations. Employing such a system, a microring modulator can maintain error-free performance under thermal fluctuations that would normally render it inoperable.
    Type: Application
    Filed: October 9, 2013
    Publication date: September 17, 2015
    Applicants: MCMASTER UNIVERSITY, THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Andrew Knights, Dylan Logan, Kishore Padmaraju, Keren Bergman
  • Patent number: 9102227
    Abstract: A hybrid vehicle transmission including a double-rotor electric machine, two planetary gear sets, an input shaft, and an output shaft, where the input shaft, the output shaft, and a first rotor of the double-rotor electric machine are each coupled to a member of the first planetary gear set, the output shaft and a second rotor of the double-rotor electric machine are each coupled to a member of the second planetary gear set, and a member of the second planetary gear set not coupled to the output shaft or the second rotor is selectively coupled to the first rotor via a first torque transfer device, and selectively coupled to a transmission housing via a second torque transfer device.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: August 11, 2015
    Assignee: McMaster University
    Inventors: Yinye Yang, Ali Emadi
  • Patent number: 9091700
    Abstract: The invention provides novel reagents and methodologies for detecting free versus bound enzyme. It is particularly useful to detect thrombin when it is not bound to A2M in the presence of thrombin bound to A2M by using a modified substrate that is sterically hindered from reacting with the bound thrombin.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: July 28, 2015
    Assignees: McMaster University, The University of Melbourne
    Inventors: Leslie R. Berry, Vera Ignjatovic, Paul T. Monagle, Anthony K. Chan
  • Publication number: 20150148242
    Abstract: The present application is directed to methods and systems for identifying small molecule compounds in mixtures using a library comprising calculated structures and corresponding calculated mass spectral fragmentation patterns of known and/or hypothetical small molecule compounds that may be in the mixture and screening of a mass spectrum of the mixture using the library to identify matching fragmentation patterns. If a mass spectral fragmentation pattern present in the mass spectrum of the mixture matches a calculated fragmentation pattern of one of the known or hypothetical compounds this confirms the identity of a compound in the mixture as the known or hypothetical compound. The method represents a platform method that can be used for a multitude of purposes related to the screening and identification of compounds in mixtures.
    Type: Application
    Filed: June 5, 2013
    Publication date: May 28, 2015
    Applicant: McMaster University
    Inventors: Nathan Magarvey, Aubrey Bailey Morgan Wyatt, Chad William Johnston, Ashraf Ibrahim, Bin Ma, Lian Yang
  • Patent number: 9006223
    Abstract: Therapeutic compositions and methods for treatment of late-onset Gaucher disease are described herein. The compositions comprise compounds having activity as pharmacological chaperones for mutant forms of the beta-glucocerebrosidase. Methods of treatment involve providing therapeutically effective amounts of such compositions to subjects in need thereof.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: April 14, 2015
    Assignees: The Hospital for Sick Children, McMaster University
    Inventors: Don J Mahuran, Michael B Tropak, Justin D Buttner, Jan E Blanchard, Eric D Brown
  • Publication number: 20150085188
    Abstract: Technologies and implementations for de-interlacing an interlaced digital video and up-converting a frame rate of a digital video are generally disclosed.
    Type: Application
    Filed: March 15, 2013
    Publication date: March 26, 2015
    Applicant: McMaster University
    Inventors: Shahram Shirani, Roozbeh Dehghannasiri
  • Patent number: 8951994
    Abstract: Therapeutic compositions and methods for treatment of late-onset Gaucher disease are described herein. The compositions comprise compounds having activity as pharmacological chaperones for mutant forms of the beta-glucocerebrosidase. Methods of treatment involve providing therapeutically effective amounts of such compositions to subjects in need thereof.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: February 10, 2015
    Assignees: The Hospital for Sick Children, McMaster University
    Inventors: Don J Mahuran, Michael B Tropak, Justin D Buttner, Jan E Blanchard, Eric D Brown
  • Patent number: 8938200
    Abstract: Methods and systems of analyzing an operating environment of wireless communication equipment in a wireless communication system are provided. A stimulus in the operating environment at a location of the wireless communication equipment is sensed and linearly expanded in Slepian sequences using a multitaper spectral estimation procedure. A singular value decomposition is performed on the linearly expanded stimulus, and a singular value of the linearly expanded stimulus provides an estimate of interference at the location of the wireless communication equipment.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: January 20, 2015
    Assignee: McMaster University
    Inventor: Simon Haykin
  • Patent number: 8937059
    Abstract: Therapeutic compositions and methods for treatment of late-onset Gaucher disease are described herein. The compositions comprise compounds having activity as pharmacological chaperones for mutant forms of the beta-glucocerebrosidase. Methods of treatment involve providing therapeutically effective amounts of such compositions to subjects in need thereof.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: January 20, 2015
    Assignees: The Hospital for Sick Children, McMaster University
    Inventors: Don J Mahuran, Michael B Tropak, Justin D Buttner, Jan E Blanchard, Eric D Brown
  • Patent number: 8929327
    Abstract: A mobile station is assisted to perform a handoff from a current access point in a current extended service set (ESS) to a new access point in a target ESS. A HandOver Mediator, possibly in conjunction with a handover server, performs an authentication process and an association process with an access point in the target ESS while masquerading as the mobile station. Parameters resulting from the authentication process and the association process are then passed to the mobile station and the mobile station can perform a handoff to the new access point.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: January 6, 2015
    Assignee: McMaster University
    Inventors: Amir Antoun Renne Sayegh, Terence Douglas Todd, Dongmei Zhao