Patents Assigned to National Research Council of Canada
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Publication number: 20150307597Abstract: Campylobacter jejuni is a leading cause of bacterial food-borne diseases in humans, ranging from acute diarrheal disease to neurological disorders. An isolated or purified antibody or fragment thereof specific to C. jejuni is described. The antibody or fragment thereof binds to a flagellar protein and reduces motility of C. jejuni. The antibody or fragment thereof is derived from a heavy chain IgG variable domain fragment (VHH) of a camelid animal immunized with C. jejuni flagellar protein. A multivalent form, as well as a phage format, of the antibody or fragment thereof is described. Methods of reducing presence of C. jejuni in an animal or an animal environment, methods and formulations for treating C. jejuni infection, and method of detecting C. jejuni are also described.Type: ApplicationFiled: October 24, 2013Publication date: October 29, 2015Applicant: NATIONAL RESEARCH COUNCIL OF CANADAInventors: Mehdi ARBABI GHAHROUDI, Ali RIAZI, Christine M. SZYMANSKI, Greg HUSSACK, Jamshid TANHA, Roger MACKENZIE
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Patent number: 9168546Abstract: A system for cold gas dynamic spraying of particulate material has a de Laval nozzle and two or more radial particle inlets located between the throat and the outlet of the nozzle, the two or more particle inlets arranged symmetrically around a linear flow path of the nozzle. Blocking of the inlets is reduced by controlling pressure of particle carrier gas to provide a stable particulate material injection pressure before and during introduction of working gas into the nozzle, and/or by clearing the particle inlets of residual particles after a spraying process. Such a system and associated method combines benefits of both downstream and upstream cold gas spray systems. Further, a nozzle for spraying particulate material having a cross-sectional shape that is narrower in a middle section compared to edge sections provides coatings with superior cross-sectional profiles.Type: GrantFiled: December 9, 2009Date of Patent: October 27, 2015Assignee: National Research Council of CanadaInventors: Lijue Xue, Shaodong Wang, Jiaren Jiang
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Patent number: 9165753Abstract: The present disclosure generally provides ionization methods and devices for use in mass spectrometry. In some embodiments, the ionization methods and devices employ short laser pulses (e.g., pulses having pulsewidths in a range of about 2 fs to about 1 ps) at a high intensity (e.g., an intensity in a range of about 1 TW/cm2 to about 1000 TW/cm2) to ionize an analyte an ambient pressure greater than about 10?5 Torr (e.g., an ambient pressure in a range of about 1 atmosphere to about 100 atmospheres).Type: GrantFiled: December 4, 2012Date of Patent: October 20, 2015Assignees: DH Technologies Development Pte. Ltd., National Research Council of CanadaInventors: Alexandre V. Loboda, Paul Corkum, David Rayner
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Patent number: 9164097Abstract: The invention relates to antibodies or fragments thereof specific for insulin-like growth factor binding protein-7 (IGFBP7). A method of raising anti-IGFBP7 single domain antibodies is also disclosed and specific antibody clones are described, along with their binding characteristics. The anti-IGFBP7 antibodies may be useful as diagnostic tools for detecting neoplastic diseases involving tumor angiogenesis, and a variety of other angiogenesis associated diseases.Type: GrantFiled: October 14, 2009Date of Patent: October 20, 2015Assignee: National Research Council of CanadaInventors: Danica Stanimirovic, Abedelnasser Abulrob, Maria Moreno
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Patent number: 9157105Abstract: The sialic acid-like sugar legionaminic acid is found as a virulence-associated surface glyco-conjugate in Legionella pneumophila and Campylobacter coli. In this work, we have purified and biochemically characterized eleven candidate biosynthetic enzymes from C. jejuni, thereby fully reconstituting the biosynthesis of legionaminic acid and its CMP-activated form, starting from fructose-6-P. This pathway involves unique GDP-linked intermediates and provides a facile means for the efficient large-scale synthesis of an important sialic acid mimic and novel precursors.Type: GrantFiled: December 16, 2009Date of Patent: October 13, 2015Assignee: National Research Council of CanadaInventors: Ian C. Schoenhofen, Susan M. Logan
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Publication number: 20150284736Abstract: The invention provides chimeric DGAT1 proteins comprising: a) at their N-terminal ends, an N-terminal portion of a first DGAT1 protein, and b) at their C-terminal ends, a C-terminal portion of a second DGAT1 protein. The chimeric DGAT proteins show enhanced activity relative to at least one of the first DGAT1 protein and the second DGAT1 protein. The chimeric DGAT proteins of the invention can be expressed in cells to increase cellular lipid accumulation and/or modify the cellular lipid profile. The invention also provides polynucleotides encoding the chimeric DGAT1 proteins, cells and compositions comprising the polynucleotides or chimeric DGAT1 proteins, and methods using the chimeric DGAT1 proteins to produce oil.Type: ApplicationFiled: October 22, 2013Publication date: October 8, 2015Applicants: National Research Council of Canada (NRC), Agresearch LimitedInventors: Nicholas John Roberts, Amy Christina Curran, Somrutai Winichayakul, Marissa Roldan, Richard William Scott, David Charles Taylor, Elizabeth-France Marillia
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Patent number: 9144604Abstract: Disclosed are immunogenic conjugates and therapeutic compositions that include such immunogenic conjugates. Also disclosed are methods of treating and/or inhibiting an Shigella sonnei infection. The disclosed immunogenic conjugates have the general structure: Pr—Sr—O—N?C-Kdo-OS wherein Pr is a carrier protein, Sr is an optional spacer moiety, Kdo is an 3-deoxy-D-manno-octulosonic acid or a derivative thereof, and OS is an oligosaccharide or polysaccharide obtained from S. sonnei. In specific examples, the immunogenic conjugates include the core oligosaccharide obtained from S. sonnei having the structure: wherein R is between 1 and 10 disaccharide repeat units. In specific examples, the disaccharide repeat unit included in the immunogenic conjugate has the structure: ?-L-AltNAcA-3-?-FucNAc4N-4-.Type: GrantFiled: May 5, 2014Date of Patent: September 29, 2015Assignees: The United States of America, as represented by the Secretary, Department of Health and Human Services, National Research Council of CanadaInventors: John B. Robbins, Rachel Schneerson, Joanna Kubler-Kielb, Christopher P. Mocca, Evguenii Vinogradov
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Patent number: 9136577Abstract: An orthomode transducer (OMT) operable in a broadband (e.g. >30%), including a frequency above ˜30 GHz, with an isolation better than ?50 dB, cross-polarizations better than ?40 dB, an insertion loss between ?0.1 and ?0.3 dB for both polarizations, and return losses better than ?25 dB can be produced substantially or entirely from CNC machining, comprises a turnstile for coupling a polarization diplexed waveguide with four waveguide paths; and two E-plane Y junctions each for coupling initially oppositely directed pairs of the waveguide paths such that each waveguide path has a same electrical length from the turnstile to the E-plane Y junctions as the waveguide path with which it is paired, such that the OMT is formed in 3-6 blocks, including a single block having a substantially planar mating surface that includes the matching feature, and defines one side of initial segments of the four waveguide paths. Reproducibility of these OMTs has been shown.Type: GrantFiled: June 8, 2010Date of Patent: September 15, 2015Assignee: National Research Council of CanadaInventors: David Dousset, Stephane Claude
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Publication number: 20150232502Abstract: N. gonorrhoeae has become resistant to almost every conventional antibiotic. Described herein is the use of CMP-nonulosonate analogues to counter gonococcal complement evasion. The nonulosonate sugar is incorporated into the lipooligosaccharide of the N. gonorrhoeae which in turn reduces the serum resistance of the bacteria. This provides a novel therapeutic strategy against the global threat of multi-drug resistant gonorrhea.Type: ApplicationFiled: February 20, 2015Publication date: August 20, 2015Applicants: UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL, NATIONAL RESEARCH COUNCIL OF CANADAInventors: Ian Schoenhofen, Dennis M. Whitfield, Sanjay RAM
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Patent number: 9102190Abstract: A nanotip, is fabricated by modifying a precursor nanotip having an apex and a shank by applying an electric field in the presence of a reactive gas to perform field-assisted etching wherein atoms are preferentially removed from the shank by chemical interaction with the reactive gas, and controlling the reactive gas pressure and/or tip voltage to vary the electric field so as to promote field evaporation of apex atoms during fabrication of the nanotip and thereby control the overall profile of the resulting nano-tip. The method permits shaping of the overall tip profile.Type: GrantFiled: September 26, 2012Date of Patent: August 11, 2015Assignees: National Research Council of Canada, The Governors of the University of AlbertaInventors: Jason L. Pitters, Radovan Urban, Robert A Wolcow
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Publication number: 20150214496Abstract: A thin film transistor (TFT) has a gate electrode; a gate insulation layer, a semiconducting channel separated from the gate electrode by the gate insulation layer; a source electrode and a drain electrode. The gate insulation layer is a cross-linked cyanoethylated polyhydroxy polymer, e.g. a cross-linked cyanoethylated pullulan, having a high dielectric constant and the semiconducting channel has a network of semiconducting carbon nanotubes. The semiconducting channel is adhered to the gate insulation layer through a polymeric material. The carbon nanotubes adhere to the polymeric material and the polymeric material reacts or interacts with the gate insulation layer. TFTs have high mobilities while maintaining good on/off ratios.Type: ApplicationFiled: January 30, 2015Publication date: July 30, 2015Applicant: National Research Council of CanadaInventors: Naiying DU, Patrick MALENFANT, Zhao LI, Jacques LEFEBVRE, Girjesh DUBEY, Gregory LOPINSKI, Shan ZOU
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Patent number: 9085627Abstract: A short human genomic nucleotide sequence from the SAR3 region of the human interferon ?2 gene permits enhances expression stability in the absence of drug selection and permits generation of stable clones or stable pools of cells for producing recombinant proteins. Although stable clones may be generated, the ability to generate stable pools reduces the burden of generating stable clones.Type: GrantFiled: March 20, 2012Date of Patent: July 21, 2015Assignee: National Research Council of CanadaInventor: Yves Durocher
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Patent number: 9085610Abstract: Helicobacter pylori, one of the most common human pathogens, is associated with the development of human chronic gastritis, peptic ulcers and gastric cancer. The invention relates to a ?1,6-glucan-containing Helicobacter pylori compound comprising the structure of Formula (I): wherein R is a ?-DDHep-3-?-L-Fuc-3-?-GlcNAc trisaccharide substituted with an ?1,6-glucan linked to an ?1,3-DD-heptan, and wherein the last DD-Hep residue of ?1,3-DD-heptan is capped with ?-GlcNAc residue. Compositions comprising the compound, uses of the compound, and antibodies raised against the compound are also described.Type: GrantFiled: July 30, 2010Date of Patent: July 21, 2015Assignee: National Research Council of CanadaInventors: Eleonora Altman, Blair A. Harrison, Vandana Chandan
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Patent number: 9066986Abstract: The present invention relates to isolated or purified antibodies or fragments thereof specific for CEACAM6 and their use as therapeutic or diagnostic tools. Specifically, the present invention is directed to antibodies or fragments thereof specific for a linear epitope of CEACAM6. In vivo and in vitro methods of diagnosis as well as therapeutic methods are also described.Type: GrantFiled: September 30, 2011Date of Patent: June 30, 2015Assignee: National Research Council of CanadaInventors: Jianbing Zhang, Toya Nath Baral, Yanal Murad
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Patent number: 9069275Abstract: The disclosure generally describes carrier resins, and in particular, resins used for carrier coatings which include at least one ester functional group and at least one cyclic aliphatic group containing at least one nitrogen atom in the cyclic ring structure. Carriers having such resins in the coating exhibit high charge and excellent relative humidity (RH) sensitivity of charge to changing environmental conditions.Type: GrantFiled: April 3, 2013Date of Patent: June 30, 2015Assignees: XEROX CORPORATION, NATIONAL RESEARCH COUNCIL OF CANADAInventors: Richard P. Veregin, Qingbin Li, Andriy Kovalenko, Sergey Gusarov, Darren Makeiff, Valerie Farrugia, Michael S. Hawkins
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Patent number: 9065059Abstract: Asphaltene components are useful as organic electronic materials, especially in the form of thin films, in organic electronic devices, such as optoelectronic devices, for example, photodiodes (e.g., photovoltaic cells), phototransistors, photomultipliers, integrated optical circuits, photoresistors, and the like.Type: GrantFiled: May 3, 2011Date of Patent: June 23, 2015Assignee: National Research Council of CanadaInventors: Gino A. Dilabio, Iain Mackie, Heather Diane Dettman
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Publication number: 20150154007Abstract: A method of generating a random number that involves applying pulses of energy to amplify a quantum mechanical vacuum fluctuation to generate one or more macroscopic fields having one or more physical properties (e.g. phase or energy) that are random and measureable, and, measuring at least one of the physical properties to obtain a value for the physical property, the value of the physical property being a random number. Measuring the phase of a Stokes signal generated in a transient Raman scattering process is one way of generating the random number as the phase of the Stokes signal is random. This method can produce random numbers faster than prior art methods as the real numbers generated can be converted to binary to produce more than one random bit and the measurement process itself is faster permitting more rapid data collection rates and more rapid turn-on times.Type: ApplicationFiled: September 9, 2011Publication date: June 4, 2015Applicant: National Research Council of CanadaInventors: Benjamin J. Sussman, Philip J. BUSTARD
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Patent number: 9048852Abstract: The frequency of an atomic clock may be stabilized against C-field variation by applying a rf magnetic field perpendicular to the C-field to cause a coherent population transfer between Zeeman states that compensates for quadratic frequency shift of transitions of the clock. The cancellation, provided by a feed-forward mechanism, is exact. The invention can be implemented in any atomic clock by including an electrode in the clock generating a magnetic field perpendicular to the C-field, and providing an electronic circuit to send rf signals to the electrode.Type: GrantFiled: February 6, 2012Date of Patent: June 2, 2015Assignee: National Research Council of CanadaInventor: Louis Marmet
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Publication number: 20150129283Abstract: A process for improving a property of a conductive ink track on a substrate involves applying heat and pressure above a glass transition temperature of the binder to a conductive ink track deposited on a first surface of a substrate, while maintaining a second surface of the substrate at a temperature below a glass transition temperature, a melting temperature or a degradation temperature of the substrate. In particular, electrical conductivity of the track is improved. The process is particularly useful for producing electronic devices, for example electrical circuits, sensors, antennae (e.g.Type: ApplicationFiled: November 7, 2014Publication date: May 14, 2015Applicant: NATIONAL RESEARCH COUNCIL OF CANADAInventors: Gaozhi XIAO, Zhiyi ZHANG, Hiroshi FUKUTANI, Ye TAO
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Patent number: 9024297Abstract: Two- and three-terminal molecular electronic devices with ballistic electron transport are described. For example, a two-terminal molecular electronic device includes a conductor 1 layer/molecule 1 layer/conductor2 layer junction, wherein the total thickness of the molecule 1 layer and the conductor2 layer is less than or approximately equal to the mean free path of a charge carrier traveling in the two layers, and wherein ballistic transport can occur for some fraction of a plurality of charge carriers in the two layers.Type: GrantFiled: September 16, 2011Date of Patent: May 5, 2015Assignees: The Governors of the University of Alberta, National Research Council of CanadaInventors: Richard L. McCreery, Adam Johan Bergren