Patents Assigned to National Research Council Canada
  • Patent number: 10647737
    Abstract: A synthetic charged glycolipid is described comprising a sulfated saccharide group covalently linked to the tree sn-1 hydroxyl group of the glycerol backbone of an archaeal core lipid via a beta linkage. The synthetic charged glycolipids include compounds of formula I wherein n is 0 or 1; R is hydrogen or hydroxyl; and Y is hydrogen or a sulfate group, at least one Y being a sulfate group; and including pharmaceutically acceptable salts thereof. The sulfated glycolipid produces stable archaeosomes at a mol % ratio of from 100:0 to 30:70 (sulfated glycolipid:uncharged glycolipid) and which induce a protective immune response, including CD8+ and CD4+ T cell responses. Archaeosomes comprising the sulfated glycolipids described have desirable adjuvant properties, particularly when mixed with uncharged glycolipid at a mol % ratio of about 50:50.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: May 12, 2020
    Assignee: National Research Council of Canada
    Inventors: Dennis M. Whitfield, G. Dennis Sprott, Lakshmi Krishnan
  • Patent number: 10644044
    Abstract: Methods are provided for fabricating photodetector arrays using passive matrix addressing technology. The photodetector arrays use a pair of switching diode and photo diode to overcome crosstalk issues within the passive matrix. The switching diode and the photo diode of each pixel may be connected using a cathode-to-cathode connection, or an anode-to-anode connection. The photodetector arrays are fabricated by assembling on a first substrate, an array of photodetector pixels comprising a switching diode and a photo diode, providing conductive lines for each row of the array and conductive lines for each column of the array, and attaching a second substrate to the first substrate. The photodetector array may also be fabricated by assembling on a first substrate an array of switching diodes, and assembling on a second substrate an array of photo diodes, and bonding the first and second substrates together.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: May 5, 2020
    Assignee: National Research Council of Canada
    Inventors: Zhiyi Zhang, Ye Tao, Heping Ding, Salima Alem, Shoude Chang
  • Patent number: 10640381
    Abstract: Processes for selectively dispersing semi-conducting single-walled carbon nanotubes (sc-SWCNTs) in a solvent. One process comprises adding an amine either: to a conjugated polymer extraction process (CPE) of the sc-SWCNTs; or after the CPE of the sc-SWCNTs, in which the amine partially displaces the conjugate polymer associated with the sc-SWNTs dispersed in the solvent. Another process comprises adding an amine either: to a conjugated polymer extraction process (CPE) of the sc-SWCNTs; or after the CPE of the sc-SWCNTs, with the proviso that the amine excludes EDTA. Also, a process for displacement of a conjugated polymer from the surface of semi-conducting single-walled carbon nanotubes (sc-SWCNTs) dispersed in a solvent, which comprises adding an amine either: to a conjugated polymer extraction process (CPE) of the sc-SWCNTs; or after the CPE of the sc-SWCNTs.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: May 5, 2020
    Assignee: National Research Council of Canada
    Inventors: Jianfu Ding, Zhao Li, Patrick Roland Lucien Malenfant
  • Patent number: 10633430
    Abstract: The present invention provides a single domain antibody (sdAb) scaffold comprising one or more than one non-canonical disulfide bond in the framework region (FR). The one or more than one non-canonical disulfide bond may be formed between cysteines introduced by mutations in FR2 and FR3. In the case where the sdAb scaffold is a VH, the Cys may be introduced at any one of positions 47-49 and any one of positions 67-71, based on Kabat numbering; in one example, the Cys may be introduced at positions 49 and 69, based on Kabat numbering. In the case where the sdAb scaffold is a VL, the Cys residues may be introduced at any one of positions 46-49 and any one of positions 62-66, based on Kabat numbering; in one example, the Cys residues may be introduced at positions 48 and 64, based on Kabat numbering.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: April 28, 2020
    Assignee: National Research Council of Canada
    Inventors: Dae Young Kim, Jamshid Tanha
  • Patent number: 10633624
    Abstract: Systems, methods, and apparatuses of controlling fluid flow are disclosed. An apparatus includes a first microplate having a first open portion and defining one or more first wells therein, a second microplate having a second open portion and defining one or more second wells therein, and a pneumatic lid constructed of styrene ethylene butylene styrene (SEBS). The pneumatic lid extends over the first open portion and the second open portion and includes one or more microfluidic channels that fluidly couple the one or more first wells to the one or more second wells. The pneumatic lid provides an airtight seal over the first microplate and the second microplate.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: April 28, 2020
    Assignees: ESSEN INSTRUMENTS, INC., NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Kirk S. Schroeder, Bradley D. Neagle, Eric Endsley, Daniel Appledorn, Keith Morton
  • Patent number: 10627400
    Abstract: Successful application of an engineered protein as therapeutics or in other industries would require the protein to have good expression level, good biophysical properties and often desired affinity to its target. The present invention provides s method of screening large numbers of protein candidates (PCs) in all three aspects simultaneously. PCs are fused to a protein anchor, which is captured by the target/antigen. The captured PCs are evaluated for their expression levels, biophysical properties and affinities using conventional methods.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: April 21, 2020
    Assignee: National Research Council of Canada
    Inventors: Jianbing Zhang, Tomoko Hirama
  • Publication number: 20200095316
    Abstract: The present invention relates, in general, to polypeptides capable of transmigrating the blood-brain barrier, and uses thereof. More specifically, the present invention relates to polypeptides derived by site-directed mutagenesis of an existing antibody fragment and uses thereof, and methods of making such molecules. The polypeptides of the present invention show enhanced blood-brain barrier crossing and brain exposure levels in vitro and in vivo.
    Type: Application
    Filed: December 12, 2017
    Publication date: March 26, 2020
    Applicants: National Research Council of Canada, Cephalon, Inc.
    Inventors: Danica Stanimirovic, Traian Sulea, Kristin Kemmerich, David Wilson, Jennifer Stratton, Matthew Pollard, Adam Clarke
  • Patent number: 10595515
    Abstract: Modified non-human mammalian hepatoma cell lines that express hepatitis C virus (HCV) antigens and which are capable of generating tumours in a syngeneic animal model are provided. The cell lines are generated by genomic integration of an expression construct that comprises one or more HCV antigen-encoding sequences under the control of a constitutive promoter. The expression construct further comprises a selectable marker and a reporter gene under the control of the same promoter. The cell lines are useful for testing prophylactic and therapeutic vaccines against HCV either in vitro or in vivo.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: March 24, 2020
    Assignee: NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Kevin Young, Lakshmi Krishnan
  • Patent number: 10569225
    Abstract: A technique for separating components of a microfluid, comprises a self-intersecting micro or nano-fluidic channel defining a cyclic path for circulating the fluid over a receiving surface of a fluid component separating member; and equipment for applying coordinated pressure to the channel at a plurality of pressure control areas along the cyclic path to circulate the fluid over the receiving surface, applying a pressure to encourage a desired transmission through the separating member, and a circulating pressure to remove surface obstructions on the separating member. The equipment preferably defines a peristaltic pump. Turbulent microfluidic flow appears to be produced.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: February 25, 2020
    Assignees: National Research Council of Canada, The Royal Institution for the Advancement of Learning/McGill University
    Inventors: Kebin Li, Teodor Veres, Tohid Fatanat Didar, Maryam Tabrizian
  • Patent number: 10570211
    Abstract: Herein described are antibodies to epidermal growth factor receptor (EGFR) having an EGFR binding affinity that is sufficient to kill disease cells presenting EGFR at high density, but is insufficient for binding to normal cells. A therapeutic effect is thus achieved while avoiding adverse events that result from unintended binding to normal cells.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: February 25, 2020
    Assignees: GILEAD SCIENCES, INC., NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Ilia Alexandre Tikhomirov, Maria L. Jaramillo, Maureen D. O'Connor-McCourt, Traian Sulea, Renald Gilbert, Bruno Gaillet, Jason Baardsnes, Myriam Banville, Suzanne Grothe
  • Patent number: 10551164
    Abstract: A technique for acquiring target's coordinates for industrial dimensional metrology involves a target that serves both as a 2D contrast target and a 3D contact target, and a metrology tool. The target has proximal and distal surfaces, at least some of which being primarily flat and facing a common normal direction. At least 3 mm separate the proximal and distal surfaces in the normal direction. Reflectivity factors of the distal and proximal surfaces differ by at least 20%. Risers connecting pairs of the proximal and distal surfaces are sufficiently undercut so that none of the risers are in view at nominal viewing angles. At least two reference edges are defined where risers meet proximal surfaces. The tool has meeting features for registration with the edges and primarily flat surfaces, in at least two registered positions, to permit a retroreflector of the tool to acquire coordinates the target centre.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: February 4, 2020
    Assignee: National Research Council of Canada
    Inventors: Luc Cournoyer, Michel Picard
  • Patent number: 10551610
    Abstract: Gravitational Janus microparticle having, a center-of-mass, a center-of-volume, and a non¬uniform density, wherein: the center-of-mass and the center-of-volume are distinct. When suspended in a fluid, the microparticle substantially aligns with either: i) the gravitational field; or ii) the direction of an acceleration, such that the Janus microparticle is in substantial rotation equilibrium. After perturbation from substantial rotational equilibrium, the Janus microparticle reversibly rotates to return to substantial rotational equilibrium. The gravitational Janus microparticle may comprise at least two portions, each having distinct physical and/or chemical characteristics, wherein at least one portion provides a detectable effect following rotation and alignment of the microparticle.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: February 4, 2020
    Assignees: National Research Council of Canada, Bank of Canada
    Inventors: Daniel Brassard, Lidija Malic, Keith J. Morton, Teodor Veres, Charles D. Macpherson, Theodoros Garanzotis
  • Publication number: 20200010808
    Abstract: Disclosed is a new process for the production of recombinant proteins, by transient transfection of suspension-grown human embryonic kidney cells (293 cell line and its genetic variants) with an expression vector, using polyethylenimine (PEI) as a transfection reagent. In a preferred embodiment, the process uses 293E cells expressing the Epstein-Barr virus (EBV) EBNA 1 protein, in combination with an oriP-based episomal expression vector having an improved cytomegalovirus expression cassette comprising the CMV5 promoter. The process combines in a single step the cell growth, transfection and protein expression, is carried out without changing the culture medium, and allows to achieve high expression levels in a short period of time. The process may be carried out in a serum-free, low-protein culture medium, is easily scalable, compatible with continuous production processes, and fully adapted to high-throughput production of milligram quantities of recombinant proteins.
    Type: Application
    Filed: August 27, 2019
    Publication date: January 9, 2020
    Applicant: NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Yves Durocher, Amine Kamen, Sylvie Perret, Phuong Pham
  • Patent number: 10520669
    Abstract: There is provided an alignment system and method for use in an ultrashort pulse duration laser-based Fiber Bragg Grating (FBG) writing system, the alignment system comprising: clamps configured to hold a coated optical fiber in a position perpendicular to a beam path of an ultrashort pulse duration laser-based FBG writing station; an optical detector; and a control system with an input from the optical detector and an output to adjust parameters of an optical source and the FBG writing station adjust a distance between the optical fiber and an optical source of the writing station based on luminescence generated in a core of the optical fiber as indicated in a signal received at the input from the optical detector.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: December 31, 2019
    Assignee: National Research Council of Canada
    Inventors: Stephen Mihailov, Dan Grobnic, Rune Lausten, Robert Walker, Ping Lu, Huimin Ding, David Coulas, Cyril Hnatovsky
  • Patent number: 10522300
    Abstract: A metal foil with a karstified topography having a surface morphology in which a maximum peak height minus a maximum profile depth is greater than 0.5 ?m and extends into the surface at least 5% of the foil thickness, a root mean square roughness is at least about 0.2 ?m measured in a direction of greatest roughness, and an oxygen abundance is less than 5 atomic %. The foil may be composed of aluminum, titanium, nickel, copper, or stainless steel, or an alloy of any thereof, and may have a coating composed of nickel, nickel alloy, titanium, titanium alloy, nickel oxide, titanium dioxide, zinc oxide, indium tin oxide, or carbon, or a mixture or composite of any thereof. The foil may form part of a metal electrode, current collector, or electrochemical interface. Further described is a method for producing the foil by laser ablation in a vacuum.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: December 31, 2019
    Assignee: National Research Council of Canada
    Inventor: Dongfang Yang
  • Patent number: 10502624
    Abstract: The present invention provides a method and compact apparatus for laser induced breakdown atomic emission spectroscopy from a targeted sample having a laser generating a laser beam, the laser beam directed to the sample, optical means for manipulating the laser beam in order maximize laser fluency at the target surface of the sample, the laser beam generating ablation and plasma emission from the sample at the target surface, an emission spectrometer having a detector for detecting a plasma plume from the plasma emission.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: December 10, 2019
    Assignee: National Research Council Canada
    Inventors: Paul Bouchard, Mohamad Sabsabi, Francois Doucet, Lütfü Celebi Özcan
  • Publication number: 20190359667
    Abstract: Recombinant transforming growth factor (TGF)-? monomers modified to inhibit dimerization and block TGF-? signaling are described. The recombinant TGF-? monomers lack the ability to bind and recruit TGF-? type I receptor (T?R1), but retain the capacity to bind the high affinity TGF-? type II receptor (T?RII), and in some instances, include mutations that increase their affinity for T?RII. Nucleic acid molecules and vectors encoding the recombinant TGF-? monomers are also described. Isolated cells, such as T cells, can be re-programmed with a TGF-? monomer-encoding nucleic acid or vector to secrete the monomer. Use of the recombinant TGF-? monomers and/or cells producing the recombinant TGF-? monomers, to inhibit TGF-? signaling, such as to treat disorders associated with aberrant TGF-? signaling, are also described.
    Type: Application
    Filed: November 17, 2017
    Publication date: November 28, 2019
    Applicants: University of Pittsburgh - Of the Commonwealth System of Higher Education, National Research Council of Canada
    Inventors: Andrew Peterson Hinck, Traian Sulea
  • Patent number: 10487153
    Abstract: The present invention relates to isolated or purified antibodies or fragments thereof specific for Carbohydrate Anhydrase IX (CA-IX) and their use as therapeutic tools. Specifically, the present invention is directed to high-affinity Carbohydrate Anhydrase IX-specific antibodies and fragments thereof and their use as antibody-drug conjugates. Compositions for use in therapy as well as therapeutic methods are also described.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: November 26, 2019
    Assignee: National Research Council of Canada
    Inventors: Anne E. G. Lenferink, Maureen D. O'Connor, Anne Marcil, Yves Durocher
  • Publication number: 20190352376
    Abstract: The present invention relates to hemagglutinin-specific antibodies, fragments thereof, and uses thereof. More specifically, these antibodies and fragments thereof are able to recognize antigen from multiple influenza strains.
    Type: Application
    Filed: January 26, 2018
    Publication date: November 21, 2019
    Applicant: National Research Council of Canada
    Inventors: Aziza Manceur, Anne Marcil, Wei Zou, Amine Kamen, Christine Gadoury
  • Publication number: 20190351486
    Abstract: A substrate has a body defined at least in part by a single piece of aluminum or aluminum alloy material having a cavity and a pinch-off or other feature area and further having a metal-matrix composite (MMC) layer formed integrally in the body at the pinch-off or other feature area. A process of producing a substrate involves machining a single piece of material to provide a body having a surface and a feature area, the feature area being of smaller dimension than required for the piece, integrally forming a metal-matrix composite layer in the feature area to build up the feature area to at least a dimension required for the piece. The metal-matrix composite comprises an aluminum-nickel alloy matrix (e.g. Al-12Si alloy alloyed with Ni) having WC particles embedded therein or a aluminum matrix (e.g. Al-12Si alloy) having TiC particles embedded therein and has greater wear resistance, greater strength, greater toughness or any combination thereof than the material.
    Type: Application
    Filed: July 29, 2019
    Publication date: November 21, 2019
    Applicant: NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Lijue Xue, Shaodong Wang, Yangsheng Li