Patents Assigned to Queen's University at Kingston
  • Patent number: 10023751
    Abstract: Polyurethane-based and epoxy-based coating compositions are described that provide coatings and adhesives that are clear, amphiphobic and durable. Both water and hexadecane readily slide off these surfaces without leaving a residue. Coatings with thicknesses ranging from about 10 nm to about 10 ?m exhibited excellent transmittance properties. Such films exhibited durability against abrasion, ink-resistance, anti-graffiti, anti-fingerprint, and strong adhesion to glass surfaces. The coatings are applicable to electronic devices, fabrics, glass, etc. to prepare optically clear, stain-resistant, and smudge-resistant surfaces.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: July 17, 2018
    Assignee: Queen's University at Kingston
    Inventors: Heng Hu, Guojun Liu, Muhammad Rabnawaz
  • Patent number: 10018712
    Abstract: This invention relates to a method of analyzing an ultrasound signal. The method comprises obtaining a time series of sequential data frames associated with an ultrasound signal reflected from and/or backscattered from a fixed location of a material under investigation, each data frame comprising a plurality of samples of the ultrasound signal, and subjecting to an analysis a sequence of one or more samples of the ultrasound signal, or a sequence of at least one parameter derived from one or more samples of the ultrasound signal, wherein a result of the analysis is related to one or properties or characteristics of the material. In one embodiment the method may be used for detecting, diagnosing, and/or assessing cancer and/or abnormalities in biological tissue.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: July 10, 2018
    Assignee: Queen's University at Kingston
    Inventors: Mehdi Moradi, Purang Abolmaesumi, Parvin Mousavi, Eric Sauerbrei, Robert Siemens, Phillip Isotalo
  • Patent number: 10015849
    Abstract: Provided are circuits and methods for use with a power supply that provides a main output including a main DC voltage having a first AC voltage ripple, or a main DC current having a first AC current ripple. A ripple cancellation converter provides a second AC voltage ripple connected in series with the main output, such that the first AC voltage ripple is substantially cancelled; or a second AC current ripple connected in parallel with the main output, such that the first AC current ripple is substantially cancelled. As a result, substantially ripple-free DC output power is provided.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: July 3, 2018
    Assignee: Queen's University at Kingston
    Inventor: Yan-Fei Liu
  • Patent number: 10015848
    Abstract: Described herein are methods and circuits for improving the performance of an AC to DC power supply. The methods and circuits achieve high power factor (PF) at the AC side and at the same time, reduce or substantially eliminate ripple in the DC output power. The methods and circuits provide an isolated topology including primary side voltage and current sensing and primary side ripple cancellation control. The methods and circuits may be used in any application where high power factor and/or low output ripple are required. In particular, the methods and circuits may be used in DC lighting applications, such as in light emitting diode (LED) lighting, wherein suppression of low frequency ripple in the output power eliminates visible flickering.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: July 3, 2018
    Assignee: Queen's University at Kingston
    Inventors: Peng Fang, Yan-Fei Liu
  • Patent number: 10014050
    Abstract: Provided are modified one-hot (MOH) constructions for WOM codes with low encoding and decoding complexity, that achieve high sum-rates. Features include maximizing writing of data information values for successive rewrites, all-zero and all-one cell state vectors that represent a unique data information value that can be written for many generations, a very high number of writes, and does not sacrifice capacity. One embodiment comprises ordered or unordered MOH code that approaches the upper-bound for large n wits. According to the embodiments, before an erasure is needed, the majority of the wits are encoded, which provides level wearing and maximizes life of cells.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: July 3, 2018
    Assignee: Queen's University at Kingston
    Inventors: Jay Hua, Shahram Yousefi
  • Patent number: 9988685
    Abstract: Methods and kits for diagnosing, prognosticating risk of, and selecting and/or administering a therapy for breast cancer based upon detection of methylated glucocorticoid receptor gene or measurement of glucocorticoid receptor and BRCA1 gene expression levels are provided.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: June 5, 2018
    Assignee: QUEEN'S UNIVERSITY AT KINGSTON
    Inventors: Christopher Robert Mueller, Kirsten A. Nesset
  • Patent number: 9983673
    Abstract: A flexible computing device with bend input and active haptic feedback that provides vibro-tactile sensations such as friction and resistance to a user. The sensations include vibrations that simulate a physical affordance of content displayed on the flexible computing device. In one embodiment the device is a smartphone.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: May 29, 2018
    Assignee: Queen's University at Kingston
    Inventor: Roel Vertegaal
  • Publication number: 20180142117
    Abstract: The present application provides switchable, homogeneous paint composition and methods of painting and/or forming films or coatings using the composition. The composition includes a liquid having an aqueous solution and dissolved acid gas (e.g., carbonated water), and a switchable polymer. The switchable polymer converts from a protonated, water-soluble form in the liquid to a water-insoluble unprotonated form following removal or substantial removal of the liquid and acid gas.
    Type: Application
    Filed: June 6, 2016
    Publication date: May 24, 2018
    Applicants: GREENCENTRE CANADA, QUEEN'S UNIVERSITY AT KINGSTON
    Inventors: Rui RESENDES, Philip G. JESSOP, Michael F. CUNNINGHAM, Bhanu Prakash MUDRABOYINA, Adam Michael OZVALD, Timothy James CLARK, Brian MARIAMPILLAI, Yun YANG, Amy Marie HOLLAND, Charles Howard HONEYMAN
  • Patent number: 9945668
    Abstract: Provided are methods and products for rapid, reliable, and accurate monitoring and detecting of convergence in mining and civil engineering applications. A sensor, such as a scanning laser device, is moved through a tunnel, either automatically, autonomously, or with manual guidance. The sensor is configured to acquire 3D point clouds of all or a portion of a tunnel, at selected times. The 3D point cloud data is used to compute a set of indicators, which are local descriptors of the environment along the tunnel. The indicators are then amalgamated to estimate the probability that convergence has occurred in a given region. In one embodiment, the indicators are fused together using a Bayes network.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: April 17, 2018
    Assignee: Queen's University at Kingston
    Inventors: Robert Lindsay Vanderbeck, Joshua A. Marshall
  • Patent number: 9917524
    Abstract: Energy channelling AC-DC converters, methods, and control systems are provided.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: March 13, 2018
    Assignee: Queens' University at Kingston
    Inventors: Peng Fang, Yan-Fei Liu
  • Patent number: 9757817
    Abstract: A method, apparatus, and system are provided to monitor and characterize the dynamics of a phase change region (PCR) created during laser welding, specifically keyhole welding, and other material modification processes, using low-coherence interferometry. By directing a measurement beam to multiple locations within and overlapping with the PCR, the system, apparatus, and method are used to determine, in real time, spatial and temporal characteristics of the weld such as keyhole depth, length, width, shape and whether the keyhole is unstable, closes or collapses. This information is important in determining the quality and material properties of a completed finished weld. It can also be used with feedback to modify the material modification process in real time.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: September 12, 2017
    Assignee: Queen's University at Kingston
    Inventor: Paul J. L. Webster
  • Patent number: 9743912
    Abstract: An ultrasound calibration phantom comprises a portion including at least one fiducial structure having a selected geometric arrangement; a portion adapted for mechanical coupling of the ultrasound calibration phantom to a transrectal ultrasound (TRUS) stepper; and a guide for at least one surgical instrument, the guide being mechanically coupled to the fiducial structure and/or to the TRUS stepper at a selected pose relative to the fiducial structure. A calibration method uses the calibration phantom and provides automatic, intraoperative calibration of ultrasound imaging systems. The invention is useful in ultrasound-guided clinical procedures.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: August 29, 2017
    Assignee: QUEEN'S UNIVERSITY AT KINGSTON
    Inventors: Gabor Fichtinger, Purang Abolmaesumi, Clif E. Burdette, Thomas Kuiran Chen, Andras Lasso, Tamas Heffter
  • Patent number: 9738606
    Abstract: A compound of Formula I, Formula IA, Formula IB, or Formula II, or an acid or base addition salt thereof, and use of these compounds as antioxidants. In one embodiment, a compound of Formula II, wherein each of X, Y, and Z are independently a carbon or nitrogen atom; R1 and R2 are each independently a hydrogen or an electron donating group, but are not both hydrogen, and wherein R1, and R2 are each bonded to a carbon atom in their own respective aryl ring.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: August 22, 2017
    Assignees: Queen's University at Kingston, Alma Mater Studiorum—Universita Di Bologna
    Inventors: Derek A. Pratt, Jason J. Hanthorn, Luca Valgimigli
  • Patent number: 9701086
    Abstract: Described is a substantially spherical biomass pellet, comprising compressed particulate biomass including one or more of ligno-cellulosic material, recycling waste, and dewatered municipal solid waste, useful as a fuel. Also described are methods for producing such pellets using one or more of untorrefied biomass and torrefied biomass, and apparatus for producing such biomass pellets.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: July 11, 2017
    Assignee: Queen's University at Kingston
    Inventors: William Andrew Duncan, Andrew Pollard, M. Hachimi Fellouah
  • Patent number: 9693878
    Abstract: Provided is a preoperatively designed guidance tool for intraoperative use during acetabular cup replacement surgery, comprising: a patient-specific template having at least one surface that registers with a selected surface of the patient's acetabulum; and a guide portion that provides an orientation or a position and orientation of an acetabular cup according to a preoperatively planned orientation or position and orientation. The guidance tool may further comprise a verification tool that cooperates with the guide portion and includes at least one mating surface that registers with a selected surface of the patient's anatomy, wherein correct positioning of the verification tool on the patient's anatomy confirms correct orientation of the patient-specific template in the patient's acetabulum.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: July 4, 2017
    Assignee: Queen's University at Kingston
    Inventors: Manuela Kunz, John F. Rudan
  • Patent number: 9629939
    Abstract: Provided is a foam material, comprising a plurality of substantially collagenous beads, wherein the foam material is a bead foam, and wherein adjacent collagenous beads are fused together by a network of collagen fibers. Also provided are methods for preparation of foam materials comprising a plurality of substantially collagenous beads. The foam materials may be used in applications such as bioscaffolds for wound healing, soft tissue regeneration and augmentation, for localized cell delivery, or as cell culture substrates for research. The foam materials include natural collagen fibrils that provide a stable scaffold and enhance integration of the implanted scaffold and regeneration of cells and tissue.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: April 25, 2017
    Assignee: Queen's University at Kingston
    Inventors: Lauren E. Flynn, Claire Yu
  • Patent number: 9607690
    Abstract: Provided are modified one-hot (MOH) constructions for WOM codes with low encoding and decoding complexity, that achieve high sum-rates. Features include maximizing writing of data information values for successive rewrites, all-zero and all-one cell state vectors that represent a unique data information value that can be written for many generations, a very high number of writes, and does not sacrifice capacity. One embodiment comprises ordered or unordered MOH code that approaches the upper-bound for large n wits. According to the embodiments, before an erasure is needed, the majority of the wits are encoded, which provides level wearing and maximizes life of cells.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: March 28, 2017
    Assignee: Queen's University at Kingston
    Inventors: Jay Hua, Shahram Yousefi
  • Publication number: 20170079095
    Abstract: Described herein are methods and circuits for improving the performance of an AC to DC power supply. The methods and circuits achieve high power factor (PF) at the AC side and at the same time, reduce or substantially eliminate ripple in the DC output power. The methods and circuits provide an isolated topology including primary side voltage and current sensing and primary side ripple cancellation control. The methods and circuits may be used in any application where high power factor and/or low output ripple are required. In particular, the methods and circuits may be used in DC lighting applications, such as in light emitting diode (LED) lighting, wherein suppression of low frequency ripple in the output power eliminates visible flickering.
    Type: Application
    Filed: March 13, 2015
    Publication date: March 16, 2017
    Applicant: Queen's University at Kingston
    Inventors: Peng Fang, Yan-Fei Liu
  • Publication number: 20170049753
    Abstract: Methods and compositions for enhancing fertility and/or inhibiting pregnancy failure, restoring glucose tolerance and/or preventing glucose intolerance and/or maintaining glucose homeostasis and/or increasing insulin sensitivity and/or preventing weight gain and/or inducing or enhancing weight loss, treating dyslipidemia, treating hypertestosteronism or hyperandrogenism, and/or treating type 2 diabetes in an individual in need thereof are provided.
    Type: Application
    Filed: August 29, 2016
    Publication date: February 23, 2017
    Applicant: Queens University at Kingston
    Inventors: Ahmad J.H. Albaghdadi, Frederick W.K. Kan
  • Patent number: 9457428
    Abstract: Methods and systems are provided for using optical interferometry in the context of material modification processes such as surgical laser or welding applications. An imaging optical source that produces imaging light. A feedback controller controls at least one processing parameter of the material modification process based on an interferometry output generated using the imaging light. A method of processing interferograms is provided based on homodyne filtering. A method of generating a record of a material modification process using an interferometry output is provided.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: October 4, 2016
    Assignee: Queen's University at Kingston
    Inventors: Paul J. L. Webster, James M. Fraser, Victor X. D. Yang