Patents by Inventor Limin Liu

Limin 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).

  • Patent number: 8557591
    Abstract: The invention provides enzymatic methods for direct determination of percentage of glycated hemoglobin in blood samples without the need of a separated measurement of total hemoglobin content in blood samples. The methods utilizes one or two different types of oxidizing agents which selectively oxidize low-molecular weight reducing substances and high-molecular weight (mainly hemoglobin) reducing substances in blood samples, coupled with enzymatic reactions catalyzed by proteases, fructosyl amino acid oxidase. The amount of hydrogen peroxide generated in the reaction is measured for determination of percentage of glycated hemoglobin in blood samples. The invention provides kits for performing the methods of the invention.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: October 15, 2013
    Assignee: General Atomics
    Inventors: Chong-Sheng Yuan, Abhijit Datta, Limin Liu
  • Publication number: 20130240169
    Abstract: The disclosure provides a forming machine without pattern casting, including: a multi-axis motion system which at least includes an X-axis motion system, a Y-axis motion system and a Z-axis motion system, and a workbench which is below the multi-axis motion system; and further includes: a moving platform system below the workbench, including a moving bracket which can reciprocate along the direction parallel to the X axis, a lifting device provided on the moving bracket, which is used for lifting and supporting the workbench to enable the linkage between the workbench and the moving bracket. The forming machine without pattern casting of the disclosure can move the workbench without a lifting tool, and machine a casting mold with a large size and a complex cavity, and causes little pollution to the environment.
    Type: Application
    Filed: May 18, 2011
    Publication date: September 19, 2013
    Inventors: Zhongde Shan, Feng Liu, Limin Liu, Xiwen Li, Shaokai Chen
  • Patent number: 8529920
    Abstract: A low pH composition containing a retinol and a method for treating skin is disclosed. The composition contains (a) a retinoid and (b) an active acid, like an alpha-hydroxy acid or a beta-hydroxy acid, and has a pH of less than 5.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: September 10, 2013
    Assignee: Amcol International Corporation
    Inventors: Limin Liu, Ralph Spindler, Gholam-Reza Vakili-Tahami
  • Publication number: 20130196342
    Abstract: Disclosed herein are methods and compositions for modulating the levels and/or activity of S-nitrosoglutathione reductase (GSNOR) in vivo or in vitro. Specifically disclosed are GSNOR deletion constructs, host cells and non-human mammals comprising GSNOR deletions, and methods of screening employing GSNOR deletion mutants. Also specifically disclosed are reagents and procedures for measuring, monitoring, or altering GSNOR levels or activity (as well as nitric oxide and S-nitrosothiol levels) in connection with various medical conditions.
    Type: Application
    Filed: April 26, 2011
    Publication date: August 1, 2013
    Applicant: Duke University
    Inventors: Jonathan S. Stamler, Limin Liu
  • Patent number: 8428364
    Abstract: Methods for post-processing of non-key frames of an image are described. According to the methods, reconstructed non-key frames are updated with information of neighboring key frames. Methods to evaluate whether to update or not update the non-key frames are also described.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: April 23, 2013
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Limin Liu, James E. Crenshaw
  • Publication number: 20130045880
    Abstract: The present invention provides compositions and methods for detecting the activation states of components of signal transduction pathways in tumor cells. Information on the activation states of components of signal transduction pathways derived from use of the invention can be used for cancer diagnosis, prognosis, and in the design of cancer treatments.
    Type: Application
    Filed: April 4, 2012
    Publication date: February 21, 2013
    Applicant: Prometheus Laboratories Inc.
    Inventors: Sharat Singh, Jeanne Harvey, Phillip Kim, Xinjun Liu, Limin Liu, Robert Barham, Bruce Neri
  • Publication number: 20120328200
    Abstract: Methods for post-processing of non-key frames of an image are described. According to the methods, reconstructed non-key frames are updated with information of neighboring key frames. Methods to evaluate whether to update or not update the non-key frames are also described.
    Type: Application
    Filed: January 7, 2011
    Publication date: December 27, 2012
    Inventors: Limin Liu, James E. Crenshaw
  • Patent number: 8338184
    Abstract: The invention provides enzymatic methods for direct determination of percentage of glycated hemoglobin in blood samples without the need of a separated measurement of total hemoglobin content in blood samples. The methods utilizes one or two different types of oxidizing agents which selectively oxidize low-molecular weight reducing substances and high-molecular weight (mainly hemoglobin) reducing substances in blood samples, coupled with enzymatic reactions catalyzed by proteases, fructosyl amino acid oxidase. The amount of hydrogen peroxide generated in the reaction is measured for determination of percentage of glycated hemoglobin in blood samples. The invention provides kits for performing the methods of the invention.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: December 25, 2012
    Assignee: General Atomics
    Inventors: Chong-Sheng Yuan, Abhijit Datta, Limin Liu
  • Patent number: 8318501
    Abstract: The invention provides enzymatic methods for direct determination of percentage of glycated hemoglobin in blood samples without the need of a separated measurement of total hemoglobin content in blood samples. The methods utilizes one or two different types of oxidizing agents which selectively oxidize low-molecular weight reducing substances and high-molecular weight (mainly hemoglobin) reducing substances in blood samples, coupled with enzymatic reactions catalyzed by proteases, fructosyl amino acid oxidase, and peroxidase. The invention provides kits for performing the methods of the invention.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: November 27, 2012
    Assignee: General Atomics
    Inventors: Chong-Sheng Yuan, Abhijit Datta, Limin Liu
  • Publication number: 20120270745
    Abstract: The present invention provides methods for selecting a suitable anticancer therapy and for identifying and predicting response for the treatment of a gastric cancer by determining the expression level and/or activation level of one or more analytes in a cell such as a cancer cell from an ascites sample. The present invention also provides methods for selecting a suitable anticancer therapy and for identifying and predicting response for the treatment of a lung cancer such as a non-small cell lung cancer by determining the expression level and/or activation level of one or more analytes in a cell such as a cancer cell from a pleural efflux sample.
    Type: Application
    Filed: January 19, 2012
    Publication date: October 25, 2012
    Applicant: Prometheus Laboratories Inc.
    Inventors: Sharat Singh, Phillip Kim, Xinjun Liu, Belen Ybarrondo, Limin Liu
  • Publication number: 20120245116
    Abstract: Patients needing NO donor therapy or inhibition of pathologically proliferating cells or increased NO bioactivity are treated with a therapeutically effective amount of an inhibitor of glutathione-dependent formaldehyde dehydrogenase.
    Type: Application
    Filed: June 8, 2012
    Publication date: September 27, 2012
    Applicant: Duke University
    Inventors: Jonathan S. Stamler, Limin Liu, Alfred Hausladen, Raphael Nudelman
  • Patent number: 8217006
    Abstract: Patients needing NO donor therapy or inhibition of pathologically proliferating cells or increased NO bioactivity are treated with a therapeutically effective amount of an inhibitor of glutathione-dependent formaldehyde dehydrogenase.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: July 10, 2012
    Assignee: Duke University
    Inventors: Jonathan S. Stamler, Limin Liu, Alfred Hausladen, Raphael Nudelman
  • Patent number: 8163499
    Abstract: The present invention provides compositions and methods for detecting the activation states of components of signal transduction pathways in tumor cells. Information on the activation states of components of signal transduction pathways derived from use of the invention can be used for cancer diagnosis, prognosis, and in the design of cancer treatments.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: April 24, 2012
    Assignee: Prometheus Laboratories Inc.
    Inventors: Sharat Singh, Jeanne Harvey, Phillip Kim, Xinjun Liu, Limin Liu, Robert Barham, Bruce Neri
  • Publication number: 20120014888
    Abstract: A composition and method for reducing the shine of human skin is disclosed. The composition imparts a topical matte finish to the skin for an extended time period. The composition contains polymeric microparticles, optionally loaded with a cosmetic or therapeutic skin care compound.
    Type: Application
    Filed: January 25, 2010
    Publication date: January 19, 2012
    Applicant: AMCOL INTERNATIONAL CORPORATION
    Inventors: Limin Liu, Ralph Spindler, Kevin Cureton
  • Publication number: 20110261698
    Abstract: Port units, methods, and computer readable storage media for testing a network are disclosed. A traffic generator may generate and transmit test traffic over a network under test, the test traffic including a plurality of interleaved packet streams, each traffic stream associated with one of a plurality of flow control groups. A traffic receiver may receive flow control packets from the network under test. The traffic generator may be configured to stop transmission of all packet streams associated with one or more paused flow control groups when the traffic receiver receives a flow control packet identifying the one or more paused flow control groups.
    Type: Application
    Filed: April 23, 2010
    Publication date: October 27, 2011
    Inventors: Sushil S. Kamerkar, Limin Liu, Anup Jethra, Gerald Pepper
  • Publication number: 20110250627
    Abstract: The invention provides enzymatic methods for direct determination of percentage of glycated hemoglobin in blood samples without the need of a separated measurement of total hemoglobin content in blood samples. The methods utilizes one or two different types of oxidizing agents which selectively oxidize low-molecular weight reducing substances and high-molecular weight (mainly hemoglobin) reducing substances in blood samples, coupled with enzymatic reactions catalyzed by proteases, fructosyl amino acid oxidase. The amount of hydrogen peroxide generated in the reaction is measured for determination of percentage of glycated hemoglobin in blood samples. The invention provides kits for performing the methods of the invention.
    Type: Application
    Filed: April 8, 2011
    Publication date: October 13, 2011
    Applicant: General Atomics
    Inventors: Chong-Sheng YUAN, Abhijit DATTA, Limin Liu
  • Publication number: 20110189249
    Abstract: A low pH composition containing a retinol and a method for treating skin is disclosed. The composition contains (a) a retinoid and (b) an active acid, like an alpha-hydroxy acid or a beta-hydroxy acid, and has a pH of less than 5.
    Type: Application
    Filed: September 9, 2009
    Publication date: August 4, 2011
    Applicant: AMCOL INTERNATIONAL CORPORATION
    Inventors: Limin Liu, Ralph Spindler, Gholam-Reza Vakili-Tahami
  • Publication number: 20110189712
    Abstract: The invention provides enzymatic methods for direct determination of percentage of glycated hemoglobin in blood samples without the need of a separated measurement of total hemoglobin content in blood samples. The methods utilizes one or two different types of oxidizing agents which selectively oxidize low-molecular weight reducing substances and high-molecular weight (mainly hemoglobin) reducing substances in blood samples, coupled with enzymatic reactions catalyzed by proteases, fructosyl amino acid oxidase, and peroxidase. The invention provides kits for performing the methods of the invention.
    Type: Application
    Filed: November 11, 2010
    Publication date: August 4, 2011
    Applicant: General Atomics
    Inventors: Chong-Sheng Yuan, Abhijit Datta, Limin Liu
  • Patent number: 7943385
    Abstract: The invention provides enzymatic methods for direct determination of percentage of glycated hemoglobin in blood samples without the need of a separated measurement of total hemoglobin content in blood samples. The methods utilizes one or two different types of oxidizing agents which selectively oxidize low-molecular weight reducing substances and high-molecular weight (mainly hemoglobin) reducing substances in blood samples, coupled with enzymatic reactions catalyzed by proteases, fructosyl amino acid oxidase. The amount of hydrogen peroxide generated in the reaction is measured for determination of percentage of glycated hemoglobin in blood samples. The invention provides kits for performing the methods of the invention.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: May 17, 2011
    Assignee: General Atomics
    Inventors: Chong-Sheng Yuan, Abhijit Datta, Limin Liu
  • Patent number: 7855079
    Abstract: The invention provides enzymatic methods for direct determination of percentage of glycated hemoglobin in blood samples without the need of a separated measurement of total hemoglobin content in blood samples. The methods utilizes one or two different types of oxidizing agents which selectively oxidize low-molecular weight reducing substances and high-molecular weight (mainly hemoglobin) reducing substances in blood samples, coupled with enzymatic reactions catalyzed by proteases, fructosyl amino acid oxidase, and peroxidase. The invention provides kits for performing the methods of the invention.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: December 21, 2010
    Assignee: General Atomics
    Inventors: Chong-Sheng Yuan, Abhijit Datta, Limin Liu