Patents by Inventor Peter Liu

Peter Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120321601
    Abstract: The present invention relates to methods, compositions and kits for increasing the in vivo circulation time of isolated platelets by storing the platelets with one or more sialidase inhibitors.
    Type: Application
    Filed: May 17, 2012
    Publication date: December 20, 2012
    Inventors: Qiyong Peter Liu, Karin Hoffmeister, Robert Sackstein
  • Publication number: 20120321722
    Abstract: The present invention relates to methods and compositions for reducing sialidase activity and inhibiting bacterial proliferation of one or more bacteria in a platelet product preparation from one or more donors. In general, the method includes contacting the platelet product preparation with an amount of a sialidase inhibitor, to thereby obtain a sialidase inhibitor-treated platelet product preparation. Sialidase activity is reduced and the proliferation of one or more bacteria is inhibited, as compared to a platelet product preparation not subjected to the sialidase inhibitor treatment.
    Type: Application
    Filed: May 17, 2012
    Publication date: December 20, 2012
    Inventors: Qiyong Peter Liu, Karin Hoffmeister
  • Publication number: 20120294842
    Abstract: The present invention relates to a platelet additive solution (PAS) having an amount of one or more sialidase inhibitors and optionally one or more glycan-modifying agents; and one or more of PAS components that includes a salt, a citrate source, a carbon source, and any combination thereof.
    Type: Application
    Filed: May 17, 2012
    Publication date: November 22, 2012
    Inventors: Qiyong Peter Liu, Karin Hoffmeister
  • Publication number: 20120202273
    Abstract: This invention relates to enzymatic removal of type A and B antigens from blood group A, B, and AB reactive cells in blood products, and thereby converting these to non-A and non-B reactive cells. The invention further relates to using unique ?-N-acetylgalactosaminidases and ?-galactosidases with superior kinetic properties for removing the immunodominant monosaccharides of the blood group A and B antigens and improved performance in enzymatic conversion of red blood cells. The preferred unique ?-N-acetylgalactosaminidases and ?-galactosidases exhibit the following characteristics: (i) exclusive, preferred or no less than 10% substrate specificity for the type A and B branched polysaccharide structures relative to measurable activity with simple mono- and disaccharide structures and aglycon derivatives hereof; (ii) optimal performance at neutral pH with blood group oligosaccharides and in enzymatic conversion of cells; and (iii) a favorable kinetic constant Km with mono- and oligosaccharide substrates.
    Type: Application
    Filed: August 8, 2011
    Publication date: August 9, 2012
    Inventors: Henrik Clausen, Humberto de la Vega, Chery Hill, Qiyong Peter Liu
  • Publication number: 20120156703
    Abstract: The disclosure relates to assessing heart failure in vitro by measuring the concentration of the marker mimecan in a sample, and optionally measuring in the sample the concentration of one or more other marker(s) of heart failure, and of assessing heart failure by comparing the concentration of mimecan and the one or more other marker(s) to reference concentrations of this (or these) marker(s) as established in a reference population. The one or more markers may be selected from the group comprising a natriuretic peptide marker, a cardiac troponin marker, and a marker of inflammation. Also disclosed are the use of mimecan as a marker protein in the assessment of heart failure, a marker combination comprising mimecan, and a kit for measuring mimecan.
    Type: Application
    Filed: January 26, 2012
    Publication date: June 21, 2012
    Applicants: THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO, ROCHE DIAGNOSTICS OPERATIONS, INC.
    Inventors: Dirk Block, Sara Arab, Georg Hess, Hendrik Huedig, Peter Liu, Ursula-Henrike Wienhues-Thelen
  • Publication number: 20110246695
    Abstract: Disclosed is an apparatus which operates to substantially evenly distribute commands and/or data packets issued from a managed program or other entity over a given time period. The even distribution of these commands or data packets minimizes congestion in critical resources such as memory, I/O devices and/or the bus for transferring the data between source and destination. Any unmanaged commands or data packets are treated as in conventional technology.
    Type: Application
    Filed: June 17, 2011
    Publication date: October 6, 2011
    Applicants: INTERNATIONAL BUSINESS MACHINES CORPORATION, TOSHIBA AMERICA ELECTRONIC COMPONENTS, INC., KABUSHIKI KAISHA TOSHIBA
    Inventors: Shigehiro Asano, Charles Ray Johns, Matthew Edward King, Peichun Peter Liu, David Mui, Jieming Qi
  • Patent number: 7993896
    Abstract: This invention relates to enzymatic removal of type A and B antigens from blood group A, B, and AB reactive cells in blood products, and thereby converting these to non-A and non-B reactive cells. The invention further relates to using unique ?-N-acetylgalactosaminidases and ?-galactosidases with superior kinetic properties for removing the immunodominant monosaccharides of the blood group A and B antigens and improved performance in enzymatic conversion of red blood cells. The preferred unique ?-N-acetylgalactosaminidases and ?-galactosidases exhibit the following characteristics: (i) exclusive, preferred or no less than 10% substrate specificity for the type A and B branched polysaccharide structures relative to measurable activity with simple mono- and disaccharide structures and aglycon derivatives hereof; (ii) optimal performance at neutral pH with blood group oligosaccharides and in enzymatic conversion of cells; and (iii) a favorable kinetic constant Km with mono- and oligosaccharide substrates.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: August 9, 2011
    Assignee: Velico Medical, Inc.
    Inventors: Henrik Clausen, Humberto de la Vega, Cheryl Hill, Qiyong Peter Liu
  • Publication number: 20110165591
    Abstract: The invention relates to a method for assessing heart failure in vitro and involves the steps of measuring in a sample the concentration of the marker biglycan, of optionally measuring in the sample the concentration of one or more other marker(s) of heart failure, and of assessing heart failure by comparing the concentration determined in for biglycan and the concentration(s) determined for the optionally one or more other marker to the concentration of this marker or these markers as established in a reference population. Also disclosed are the use of biglycan as a marker protein in the assessment of heart failure, a marker combination comprising biglycan and a kit for measuring biglycan.
    Type: Application
    Filed: March 15, 2011
    Publication date: July 7, 2011
    Inventors: Ursula-Henrike Wienhues-Thelen, Sara Arab, Dirk Block, Andrew Emili, Anthony Gramolini, Georg Hess, Hendrik Huedig, Peter Liu, David MacLennan
  • Patent number: 7951552
    Abstract: This invention relates to novel ?-galactosidases for the enzymatic removal of the immunodominant monosaccharides on blood products and tissues. Specifically this invention provides a novel family of ?3 glycosidases, used for the enzymatic removal of type B antigens from blood group B and AB reactive blood products, and the GaIiIi antigen from non-human animal tissues, thereby converting these to non-immunogenic cells and tissues suitable for transplantation.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: May 31, 2011
    Assignee: Velico Medical, Inc.
    Inventors: Qiyong Peter Liu, Henrik Clausen
  • Publication number: 20110045569
    Abstract: This invention relates to enzymatic removal of type A and B antigens from blood group A, B, and AB reactive cells in blood products, and thereby converting these to non-A and non-B reactive cells. The invention further relates to using unique ?-N-acetylgalactosaminidases and ?-galactosidases with superior kinetic properties for removing the immunodominant monosaccharides of the blood group A and B antigens and improved performance in enzymatic conversion of red blood cells. The preferred unique ?-N-acetylgalactosaminidases and ?-galactosidases exhibit the following characteristics: (i) exclusive, preferred or no less than 10% substrate specificity for the type A and B branched polysaccharide structures relative to measurable activity with simple mono- and disaccharide structures and aglycon derivatives hereof; (ii) optimal performance at neutral pH with blood group oligosaccharides and in enzymatic conversion of cells; and (iii) a favorable kinetic constant Km with mono- and oligosaccharide substrates.
    Type: Application
    Filed: May 28, 2010
    Publication date: February 24, 2011
    Inventors: Henrik Clausen, Humberto De La Vega, Cheryl Hill, Qiyong Peter Liu
  • Publication number: 20110027819
    Abstract: Disclosed is a method for assessing heart failure in vitro including the steps of measuring in a sample the concentration of the marker SFRP-3, of optionally measuring in the sample the concentration of one or more other marker(s) of heart failure, and of assessing heart failure by comparing the concentration determined in for SFRP-3 and the concentration(s) determined for the optionally one or more other marker to the concentration of this marker or these markers as established in a reference population. Also disclosed are the use of SFRP-3 as a marker protein in the assessment of heart failure, a marker combination comprising SFRP-3 and a kit for measuring SFRP-3.
    Type: Application
    Filed: October 11, 2010
    Publication date: February 3, 2011
    Inventors: Ursula-Henrike Wienhues-Thelen, Sara Arab, Dirk Block, Andrew Emili, Anthony Gramolini, Georg Hess, Hendrik Heudig, Peter Liu, David MacLennan
  • Patent number: 7877523
    Abstract: An apparatus and a computer program product are provided for completing a plurality of (direct memory access) DMA commands in a computer system. It is determined whether the DMA commands are chained together as a list DMA command. Upon a determination that the DMA commands are chained together as a list DMA command, it is also determined whether a current list element of the list DMA command is fenced. Upon a determination that the current list element is not fenced, a next list element is fetched and processed before the current list element has been completed.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: January 25, 2011
    Assignee: International Business Machines Corporation
    Inventors: Matthew Edward King, Peichum Peter Liu, David Mui, Takeshi Yamazaki
  • Publication number: 20110014132
    Abstract: The present invention is a solid effervescent mixture for oral absorption which comes in the following forms: tablets, pills, granules, chewing gum, and candy. The formulation and preparation methods of the solid effervescent mixture are also disclosed. The solid effervescent formulation is administrated orally without water for dissolving and swallowing. In general, the present invention is directed to a solid or other mixture that comprises an orally administrable therapeutic agent or agents, in combination with an effervescent formulation that may be used as an absorption enhancer for the therapeutic agents across the buccal, sublingual, and/or gingival mucosa in order to relieve local and systemic symptoms rapidly.
    Type: Application
    Filed: July 10, 2010
    Publication date: January 20, 2011
    Inventor: Shuang Peter Liu
  • Publication number: 20110014170
    Abstract: This invention relates to novel ?-galactosidases for the enzymatic removal of the immunodominant monosaccharides on blood products and tissues. Specifically this invention provides a novel family of ?3 glycosidases, used for the enzymatic removal of type B antigens from blood group B and AB reactive blood products, and the Galili antigen from non-human animal tissues, thereby converting these to non-immunogenic cells and tissues suitable for transplantation.
    Type: Application
    Filed: February 19, 2010
    Publication date: January 20, 2011
    Inventors: Qiyong Peter LIU, Henrik Clausen
  • Publication number: 20110001297
    Abstract: A method of making an ice skate blade that comprises providing an upper member made of aluminum and a bottom member made of stainless steel. The upper member has a bottom portion comprising one of a recess and a projection and a top portion having attachment portions for allowing attachment of the upper member to a blade holder. The bottom member has a top portion comprising the other one of a recess and a projection and a bottom portion having a surface for contacting ice. The method further comprises joining the upper member and the bottom member together by registering the one of a recess and a projection of the upper member with the other one of a recess and a projection of the bottom member for making the blade.
    Type: Application
    Filed: July 6, 2009
    Publication date: January 6, 2011
    Inventors: Ivan Labonté, Sébastien Dubois, Peter Liu
  • Publication number: 20100285491
    Abstract: The invention relates to a method for assessing heart failure in vitro comprising the steps of measuring in a sample the concentration of the marker IGFBP-7, of optionally measuring in the sample the concentration of one or more other marker(s) of heart failure, and of assessing heart failure by comparing the concentration determined in for IGFBP-7 and the concentration(s) determined for the optionally one or more other marker to the concentration of this marker or these markers as established in a reference population. Also disclosed are the use of IGFBP-7 as a marker protein in the assessment of heart failure, a marker combination comprising IGFBP-7 and a kit for measuring IGFBP-7.
    Type: Application
    Filed: July 16, 2009
    Publication date: November 11, 2010
    Inventors: Ursula-Henrike Wienhues-Thelen, Georg Hess, Hendrik Huedig, Herbert von der Eltz, Andrew Emili, Anthony Gramolini, Peter Liu, David MacLennan, Vincent Fong, Ruth Isserlin, Thomas Kislinger, Dirk Block
  • Publication number: 20100285492
    Abstract: The invention relates to a method for assessing heart failure in vitro comprising the steps of measuring in a sample the concentration of the marker SLIM-1, of optionally measuring in the sample the concentration of one or more other marker(s) of heart failure, and of assessing heart failure by comparing the concentration determined in for SLIM-1 and the concentration(s) determined for the optionally one or more other marker to the concentration of this marker or these markers as established in a reference population. Also disclosed are the use of SLIM-1 as a marker protein in the assessment of heart failure, a marker combination comprising SLIM-1 and a kit for measuring SLIM-1.
    Type: Application
    Filed: September 4, 2009
    Publication date: November 11, 2010
    Inventors: Ursula-Henrike Wienhues-Thelen, Georg Hess, Hendrik Huedig, Herbert von der Eltz, Andrew Emili, Anthony Gramolini, Peter Liu, David MacLennan, Vincent Fong, Ruth Isserlin, Thomas Kislinger, Dirk Block
  • Patent number: 7815490
    Abstract: A flash vaporizing liquid jet cutting tool and method for piercing with minimal damage to the cut material. The liquid is preferably superheated water, typically with abrasive particles added after the jet is expressed through a nozzle (abrasive water jet, AWJ) or with abrasive particles added before the jet is expressed through a nozzle (abrasive slurry jet, ASJ). In piercing, only a portion of water that has not changed phase enters into the cavity or must leave the cavity and the piercing pressure, which can damage the material, is therefore reduced.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: October 19, 2010
    Inventor: Peter Liu
  • Patent number: 7814281
    Abstract: The present invention provides for atomic update primitives in an asymmetric single-chip heterogeneous multiprocessor computer system having a shared memory with DMA transfers. At least one lock line command is generated from a set comprising a get lock line command with reservation, a put lock line conditional command, and a put lock line unconditional command.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: October 12, 2010
    Assignee: International Business Machines Corporation
    Inventors: Michael Norman Day, Charles Ray Johns, James Allan Kahle, Peichum Peter Liu, Thuong Quang Truong
  • Patent number: 7802300
    Abstract: In one embodiment, an anti-rootkit module compares operating system kernel binary files to their loaded kernel file image in memory to find a difference between them. The difference may be scanned for telltale signs of rootkit modification. To prevent rootkits from interfering with memory access of the kernel file image, a pre-scan may be performed to ensure that paging functions and the interrupt dispatch table are in known good condition. If the difference is due to a rootkit modification, the kernel file image may be restored to a known good condition to disable the rootkit. A subsequent virus scan may be performed to remove remaining traces of the rootkit and other malicious codes from the computer.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: September 21, 2010
    Assignee: Trend Micro Incorporated
    Inventors: Peter Liu, Jason Yueh, Gene Lin