Patents Assigned to Versitech Limited
  • Patent number: 8361708
    Abstract: The present invention relates to an isolated novel virus causing Severe Acute Respiratory Syndrome (SARS) in humans (“hSARS virus”). The hSARS virus is identified to be morphologically and phylogenetically similar to known member of Coronaviridae. The present invention provides the complete genomic sequence of the hSARS virus. Furthermore, the invention provides the nucleic acids and peptides encoded by and/or derived from the hSARS virus and their use in diagnostic methods and therapeutic methods, including vaccines. In addition, the invention provides chimeric or recombinant viruses encoded by said nucleotide sequences and antibodies immunospecific to the polypeptides encoded by the nucleotide sequences.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: January 29, 2013
    Assignee: Versitech Limited
    Inventors: Joseph S. M. Peiris, Kwok Yung Yuen, Lit Man Poon, Yi Guan, Kwok Hung Chan, John M. Nicholls, Frederick C. Leung
  • Patent number: 8329400
    Abstract: A method of juxtaposing sequence tags (GVTs) that are unique positional markers along the length of a population of target nucleic acid molecules is provided, the method comprising: fragmenting the target nucleic acid molecule to form target DNA insert; ligating the target DNA insert to a DNA vector or backbone to create a circular molecule; digesting the target DNA insert endonuclease to cleave the target DNA insert at a distance from each end of the target DNA insert yielding two GVTs comprising terminal sequences of the target DNA insert attached to an undigested linear backbone; recircularizing the linear backbone with the attached GVTs to obtain a circular DNA containing a GVT-pair having two juxtaposed GVTs; and recovering the GVT-pair DNA by nucleic acid amplification or digestion with endonuclease having sites flanking the GVT-pair. Cosmid vectors are provided for creating GVT-pairs of ˜45- to 50-kb separation sequencable by next-generation DNA sequencers.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: December 11, 2012
    Assignee: Versitech Limited
    Inventor: Si Lok
  • Patent number: 8299067
    Abstract: Provided herein are 5-demethoxyfumagillol and its derivatives. Also provided herein are methods of making the 5-demethoxyfumagillol and derivatives. Also provided herein are biological activities of the 5-demethoxyfumagillol and derivatives and methods of using same for treating diseases.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: October 30, 2012
    Assignees: Versitech Limited, Morningside Ventures Limited
    Inventors: Dan Yang, Chengyong Li, Shiwu Chen
  • Patent number: 8218575
    Abstract: A method for shortening the length of time gaps between data units in a data switching network; the method comprising: arranging a group of K data units received consecutively at an input of a first device in K time units, where K is a positive integer; sending the arranged K data units to the inputs of M devices, where M is a positive integer; transferring a group of Hj data units of the arranged K data units by a device j of the M devices from its inputs to its outputs within a time unit Tx in the K unit time period, where Hj is a positive integer and the sum of Hj for j=1, . . .
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: July 10, 2012
    Assignee: Versitech Limited
    Inventors: Chun-Yin Li, Alexander Ping-Kong Wai, Victor On-Kwok Li
  • Patent number: 8160996
    Abstract: A sequence online analytical processing (S-OLAP) system 50 for analysing an event database (41) storing events (12), the system (50) comprising: an S-OLAP engine (53) to compute an S-cuboid (49) for a query on the event database (41); a sequence query engine (54) to form part of the S-cuboid (49) by performing the steps of: selection, clustering, sequence formation and sequence grouping; a cuboid repository (52) to store computed S-cuboids (49) and to be searched by the S-OLAP engine (53) for an S-cuboid query to determine whether an S-cuboid has previously been computed; and a sequence cache (56) to cache constructed sequence groups.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: April 17, 2012
    Assignees: The Hong Kong Polytechnic University, Versitech Limited
    Inventors: Eric Chi Lik Lo, Benjamin Chi Ming Kao, Wai-Shing Ho, Chun-Kit Chui, Sau-Dan Lee
  • Publication number: 20120080420
    Abstract: The present invention provides a power control circuit connectable to a load adapted to receive a power supply, the power control circuit adapted to absorb power from the power supply and adapted to deliver power to the power supply to stabilize at least one electrical parameter of the power supply. The present invention also provides an associated method of stabilizing at least one electrical parameter of a power supply connectable to a load, the method including absorbing power from the power supply or delivering power to the power supply. The at least one electrical parameter of the power supply includes parameters such as voltage and frequency.
    Type: Application
    Filed: October 3, 2011
    Publication date: April 5, 2012
    Applicants: VERSITECH LIMITED, CITY UNIVERSITY OF HONG KONG
    Inventors: Shu Yuen Ron HUI, Chi Kwan LEE, Felix Fulih WU
  • Patent number: 8148423
    Abstract: Provided herein are fluorophore compounds including rhodol and rhodamine compounds which can be used as fluorescent labels and/or fluorogenic probes and methods of making same. Provided also herein are methods that can be used to track, measure, detect, or screen biological species such as protein, DNA, enzyme, antibody, organelle, cell, tissue, drug, hormone, nucleotide, nucleic acid, polysaccharide or lipid in living organisms. Specifically, the methods include the steps of contacting any of the fluorophore compounds, rhodol compounds and rhodamine compounds disclosed herein with the biological species to form one or more fluorescent compounds, and measuring fluorescence properties of the fluorescent compounds. Provided also herein are high-throughput screening fluorescent methods for detecting or screening biological species.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: April 3, 2012
    Assignees: Versitech Limited, Morningside Ventures Limited
    Inventors: Dan Yang, Tao Peng
  • Patent number: 8114904
    Abstract: Provided herein are compounds or fluorogenic probes which can be used as reagents for measuring, detecting and/or screening ROS or RNS such as peroxynitrite or hypochlorite. Provided also herein are methods that can be used to measure, directly or indirectly, the amount of peroxynitrite or hypochlorite in chemical samples and biological samples such as cells and tissues in living organisms. Specifically, the methods include the steps of contacting the fluorogenic probes disclosed herein with the samples to form one or more fluorescent compounds, and measuring fluorescence properties of the fluorescent compounds. Provided also herein are high-throughput screening fluorescent methods for detecting or screening peroxynitrite or compounds that can increase or decrease the level of peroxynitrite or hypochlorite in chemical and biological samples.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: February 14, 2012
    Assignee: Versitech Limited & Morningside Ventures Limited
    Inventors: Dan Yang, Tao Peng
  • Patent number: 8107150
    Abstract: Diarylethene-containing ligands and their coordination compounds are described. The ligands display photochromism with UV excitation, while the coordination compounds display photochromism with both excitation in the UV region and excitation into lower energy absorption bands characteristic of the coordination compounds, through which the excitation wavelengths for the photocyclization can be extended from ??340 nm to wavelengths beyond 470 nm. Switching of the luminescence properties of the compounds has also been achieved through photochromic reactions.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: January 31, 2012
    Assignee: Versitech Limited
    Inventors: Vivian Wing-Wah Yam, Chi-Chiu Ko
  • Patent number: 8092994
    Abstract: The present invention provides the complete genomic sequence of a novel human coronavirus, coined as coronavirus-HKU1 (“CoV-HKU1”), isolated in Hong Kong from a patient who had a recent history of visit to Schenzhen, China. The virus belongs to the order Nidovirales of the family Coronavirdae, being a single-stranded RNA virus of positive polarity. The invention also provides the deduced amino acid sequences of the complete genome of the CoV-HKU1. The nucleotide sequences and deduced amino acid sequences of the CoV-HKU1 are useful in preventing, diagnosing and/or treating the infection by CoV-HKU1. Furthermore, the invention provides immunogenic and vaccine preparations using recombinant and chimeric forms as well as subunits of the CoV-HKU1 based on the nucleotide sequences and deduced amino acid sequences of the CoV-HKU1.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: January 10, 2012
    Assignee: Versitech Limited
    Inventors: Kwok Yung Yuen, Chiu Yat Patrick Woo, Kar Pui Susanna Lau, Kwok Hung Chan, Lit Man Poon, Joseph Sriyal Malik Peiris, Yi Guan
  • Patent number: 8076077
    Abstract: This invention provides a composition comprising the following polynucleotide probes: IL7R (AA485865) (SEQ ID NO:7), NDRGI (AA486403) (SEQ ID NO:8), EST1 (H50345) (SEQ ID NO:9), TRPC1 (AA017132) (SEQ ID NO:10), GFRA1 (AA512935) (SEQ ID NO:11), EST2 (AA454543) (SEQ ID NO:12), CLDN10 (R54559) (SEQ ID NO:13), DNALI1 (R93087) (SEQ ID NO:14), RBP5 (AA453198) (SEQ ID NO:15), EST3 (AA621761) (SEQ ID NO:16), EST4 (N63706) (SEQ ID NO:17), PCOLCE (AA670200) (SEQ ID NO:18), TDO2 (T72398) (SEQ ID NO:19), EST5 (T47454) (SEQ ID NO:20), HIST1H2BD (N33927) (SEQ ID NO:21), PXMP2 (N70714) (SEQ ID NO:22), ACAS2 (AA455146) (SEQ ID NO:23), ANAPC7 (T68445) (SEQ ID NO:24), EST6 (AA576580) (SEQ ID NO:25), RBP5 (N92148) (SEQ ID NO:26), ANXAI (H63077) (SEQ ID NO:27), CKB (AA894557) (SEQ ID NO:28), ITGBL1 (N52533) (SEQ ID NO:29), KPNA2 (AA676460) (SEQ ID NO:30), EST7 (W90740) (SEQ ID NO:31) and MEG3 (W85841) (SEQ ID NO:32).
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: December 13, 2011
    Assignee: Versitech Limited
    Inventors: Siu Tim Cheung, Sheung Tat Fan
  • Patent number: 8030097
    Abstract: Methods and apparatus are disclosed for the measurement of lipocalin-2 in body fluids (including but not limited to blood, serum, plasma, urine, saliva, tear, etc.) by an assay such as an immunoassay or an immunotest for (1) the prediction of risk of future cardiovascular diseases; and (2) the determination of the likelihood that certain individuals will benefit to a greater or lesser extent from the use of certain treatments designed to prevent and/or treat cardiovascular diseases.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: October 4, 2011
    Assignee: Versitech Limited and R & C Biogenius Limited
    Inventors: Aimin Xu, Yu Wang, Reinhard Renneberg, George William Hunter Cautherley, Cangel Pui Yee Chan, Matthias Lehmann
  • Publication number: 20110230456
    Abstract: The invention relates to nitridoosmium complexes and methods of using these compounds as treatments for cancer.
    Type: Application
    Filed: March 19, 2010
    Publication date: September 22, 2011
    Applicants: THE CITY UNIVERSITY OF HONG KONG, VERSITECH LIMITED
    Inventors: Tai Chu LAU, Yun Wah LAM, Wai Lun MAN, Wen Xiu NI, Chi-Ming CHE
  • Patent number: 7982228
    Abstract: Methods and systems are provided that may be used to utilize and manufacture a light sources apparatus. A first light emitting diode emits light having a first wavelength, and a second light emitting diode for emitting light having a second wavelength. Each of the first and second light emitting diodes may comprise angled facets to reflect incident light in a direct toward a top end of the first light emitting diode. The second light emitting diode comprising angled facets may reflect incident light in a direction toward a top end of the second light emitting diode. A first distributed Bragg reflector is disposed between the top end of the first light emitting diode and a bottom end of the second light emitting diode to allow light from the first light emitting diode to pass through and to reflect light from the second light emitting diode.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: July 19, 2011
    Assignee: Versitech Limited
    Inventors: Hoi Wai Choi, Kwun Nam Hui, Xianghua Wang
  • Patent number: 7858598
    Abstract: Provided herein are compounds or hypochlorous acid probes which can be used as reagents for measuring, detecting and/or screening, directly or indirectly, hypochlorous acid or hypochlorite. Provided also herein are methods that can be used to measure, directly or indirectly, the amount of hypochlorous acid or hypochlorite in chemical samples and biological samples such as cells and tissues in living organisms. Specifically, the methods include the steps of contacting the hypochlorous acid probes disclosed herein with the samples to form one or more fluorescent compounds, and measuring fluorescence properties of the fluorescent compounds. Provided also herein are high-throughput screening fluorescent methods for detecting or screening hypochlorous acid or compounds that can increase or decrease, directly or indirectly, the level of hypochlorous acid or hypochlorite in chemical and biological samples.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: December 28, 2010
    Assignee: Morningside Ventures Limited & Versitech Limited
    Inventors: Dan Yang, Zhen-Ning Sun, Yan Chen, Fengqin Liu
  • Patent number: 7803234
    Abstract: The invention provides a method for making surface treated shape memory materials such as from NiTi alloy using plasma immersion ion implantation and deposition and related ion-beam and plasma-based techniques to alter the surface properties of those materials primarily for biomedical applications. The surfaces are treated with nitrogen, oxygen, and carbon, but become bio-inactive after implanted with other elements such as silicon.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: September 28, 2010
    Assignees: Versitech Limited
    Inventors: Kelvin W. K. Yeung, Ray W. Y. Poon, Paul Kim-Ho Chu, Kenneth M. C. Cheung, William W. Lu
  • Patent number: 7789975
    Abstract: The present invention relates generally to a shape memory and/or super-elastic material, such as a nickel titanium alloy. Additionally or alternatively, the present invention relates to a super-elastic or pseudo-elastic material that has an initial transition temperature Af above a body temperature. The shape memory material can have a super-elasticity or pseudo-elasticity property at a temperature below the initial transition temperature Af of the material. For example, the shape memory material can have its workable temperature for producing super-elasticity or pseudo-elasticity of about 0° C. to 15° C. below the initial transition temperature Af. The shape memory material can be malleable at a room temperature, and become super-elastic or pseudo-elastic at a body temperature. In addition, the present invention relates to a method of making a shape memory or a super-elastic material.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: September 7, 2010
    Assignees: Versitech Limited, The City University of Hong Kong
    Inventors: Man Chee Kenneth Cheung, Kelvin W. K. Yeung, William W. Lu, C. Y. Chung
  • Patent number: 7785775
    Abstract: The present invention relates to an isolated novel virus causing Severe Acute Respiratory Syndrome (SARS) in humans (“hSARS virus”). The hSARS virus is identified to be morphologically and phylogenetically similar to known member of Coronaviridae. The present invention provides the complete genomic sequence of the hSARS virus. Furthermore, the invention provides the nucleic acids and peptides encoded by and/or derived from the hSARS virus and their use in diagnostic methods and therapeutic methods, including vaccines. In addition, the invention provides chimeric or recombinant viruses encoded by said nucleotide sequences and antibodies immunospecific to the polypeptides encoded by the nucleotide sequences.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: August 31, 2010
    Assignee: Versitech Limited
    Inventors: Joseph Sriyal Malik Peiris, Kwok Yung Yuen, Lit Man Poon, Yi Guan, Kwok Hung Chan, John M. Nicholls, Frederick C. Leung
  • Publication number: 20090253143
    Abstract: Provided herein are fluorophore compounds including rhodol and rhodamine compounds which can be used as fluorescent labels and/or fluorogenic probes and methods of making same. Provided also herein are methods that can be used to track, measure, detect, or screen biological species such as protein, DNA, enzyme, antibody, organelle, cell, tissue, drug, hormone, nucleotide, nucleic acid, polysaccharide or lipid in living organisms. Specifically, the methods include the steps of contacting any of the fluorophore compounds, rhodol compounds and rhodamine compounds disclosed herein with the biological species to form one or more fluorescent compounds, and measuring fluorescence properties of the fluorescent compounds. Provided also herein are high-throughput screening fluorescent methods for detecting or screening biological species.
    Type: Application
    Filed: April 3, 2009
    Publication date: October 8, 2009
    Applicants: Versitech Limited, Morningside Ventures Limited
    Inventors: Dan Yang, Tao Peng
  • Publication number: 20090253118
    Abstract: Provided herein are compounds or fluorogenic probes which can be used as reagents for measuring, detecting and/or screening ROS or RNS such as peroxynitrite or hypochlorite. Provided also herein are methods that can be used to measure, directly or indirectly, the amount of peroxynitrite or hypochlorite in chemical samples and biological samples such as cells and tissues in living organisms. Specifically, the methods include the steps of contacting the fluorogenic probes disclosed herein with the samples to form one or more fluorescent compounds, and measuring fluorescence properties of the fluorescent compounds. Provided also herein are high-throughput screening fluorescent methods for detecting or screening peroxynitrite or compounds that can increase or decrease the level of peroxynitrite or hypochlorite in chemical and biological samples.
    Type: Application
    Filed: April 3, 2009
    Publication date: October 8, 2009
    Applicants: Versitech Limited, Morningside Ventures Limited
    Inventors: Dan YANG, Tao PENG