Patents by Inventor Qinghua Liu

Qinghua 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: 20160380821
    Abstract: The present application provides a remote electrical tilt antenna management apparatus, system, and method, a remote controller, and a base station. The method includes: obtaining, by a remote control unit RCU, a first permission configuration file, where the first permission configuration file includes information about a first permission of a first base station to perform an operation on a first remote electrical tilt RET unit, and the first permission includes at least query or control; and configuring, by the RCU according to the first permission configuration file, the first permission of the first base station to perform an operation on the first RET. In this way, the first base station implements configuration of a management operation on the first RET, thereby implementing, by configuring different permission configuration files on the RCU, that a same base station manages different RETs, and further improving operability of managing a RET.
    Type: Application
    Filed: September 9, 2016
    Publication date: December 29, 2016
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Qinghua LIU, Yong Zhang, Weiren Qu
  • Patent number: 9510436
    Abstract: In some aspects, plasma torch cutting systems can include a housing and a plasma torch power supply within the housing and configured to generate a signal that initiates generation of a plasma arc in a torch head, the power supply including an integrated circuit comprising a plurality of electronic components used to generate the signal that initiates generation of the plasma arc, at least one of the electronic components being at least partially formed of a wide bandgap semiconductor material.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: November 29, 2016
    Assignee: Hypertherm, Inc.
    Inventors: Dennis M. Borowy, Qinghua Liu, Yu Zhang, Girish R. Kamath, Michael Hoffa
  • Patent number: 9226911
    Abstract: A method of reducing a weight of a subject includes administering to the subject in need thereof a composition comprised of fucoxanthin extract and at least one selected from the group consisting of tocotrienol, fucoidan and a combination thereof, wherein the subject is a mammal.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: January 5, 2016
    Assignee: BEIJING GINGKO GROUP BIOLOGICAL TECHNOLOGY CO., LTD.
    Inventors: Yanmei Li, Qinghua Liu
  • Publication number: 20150343554
    Abstract: A plasma cutting system is provided. The system includes a power source configured to generate a plasma arc, and a plasma arc torch connected to the power source for delivering the plasma arc to a workpiece. The plasma arc torch defines a multi-function fluid flow path for sustaining the plasma arc and cooling the plasma arc torch such that the plasma cutting system has a power-to-gas flow ratio of at least 2 kilowatts per cubic feet per minute (KW/cfm). The power-to-gas flow ratio comprises a ratio of power of the generated plasma arc to a total gas flow supplied to the plasma arc torch.
    Type: Application
    Filed: January 30, 2015
    Publication date: December 3, 2015
    Inventors: Jesse A. Roberts, Shreyansh Patel, Stephen T. Eickhoff, Justin Gullotta, Qinghua Liu, Dennis M. Borowy, Zheng Duan, Ashok V. Retnaswamy, Sung Je Kim
  • Publication number: 20150282290
    Abstract: In some aspects, plasma torch cutting systems can include a housing and a plasma torch power supply within the housing and configured to generate a signal that initiates generation of a plasma arc in a torch head, the power supply including an integrated circuit comprising a plurality of electronic components used to generate the signal that initiates generation of the plasma arc, at least one of the electronic components being at least partially formed of a wide bandgap semiconductor material.
    Type: Application
    Filed: March 31, 2015
    Publication date: October 1, 2015
    Inventors: Dennis M. Borowy, Qinghua Liu, Yu Zhang, Girish R. Kamath, Michael Hoffa
  • Patent number: 8454970
    Abstract: A composition comprises extract of fucoxanthin, wherein said composition further comprises tocotrienols and/or fucoidan. Said composition can be used to treat obesity. Said composition shows outstanding effect of weight loss. There is outstanding synergy effect among those constituents of the composition.
    Type: Grant
    Filed: January 19, 2009
    Date of Patent: June 4, 2013
    Assignee: Beijing Gingko Group Biological Technology Co., Ltd.
    Inventors: Yanmei Li, Qinghua Liu
  • Publication number: 20130030046
    Abstract: The application relates to a use of black soybean hull extracts in the manufacture of foods, health care products and medicaments. The black soybean hull extracts can be added to foods or drinks, and also can be made into all kinds of oral health care products and oral medicaments used by conventional methods of preparing traditional Chinese medicine preparations. The products can significantly improve symptoms of osteoarthritis, and also can stabilize or even reverse the degradation of cartilage of osteoarthritis.
    Type: Application
    Filed: November 11, 2010
    Publication date: January 31, 2013
    Applicant: BEIJING GINGKO GROUP BIOLOGICAL TECHNOLOGY CO., LTD.
    Inventors: Chunhua Li, Yanmei Li, Qinghua Liu
  • Publication number: 20120234803
    Abstract: A method of determining a failure event of consumable for a plasma torch is provided. The method includes monitoring at least one of an operating current or an operating voltage during a transfer arc mode of the plasma arc torch. The method also includes determining when at least one parameter associated with the operating current or the operating voltage exceeds a tolerance threshold for a time period indicative of the failure event. The method further includes shutting off at least one of the operating current or the operating voltage of the plasma arc torch when the at least one parameter exceeds the tolerance threshold for the time period.
    Type: Application
    Filed: July 15, 2011
    Publication date: September 20, 2012
    Applicant: Hypertherm, Inc.
    Inventors: Qinghua Liu, Zheng Duan, Zhang Yu
  • Publication number: 20120220580
    Abstract: Compounds having the structure of general formula I or pharmaceutically acceptable salts thereof which are derivatives of fucoxanthin and fucoxanthol are disclosed. A preparation method of the compound and its use in weight reducing are also disclosed.
    Type: Application
    Filed: April 19, 2012
    Publication date: August 30, 2012
    Applicant: BEIJING GINGKO GROUP BIOLOGICAL TECHNOLOGY CO., LTD.
    Inventors: YANMEI LI, QINGHUA LIU
  • Publication number: 20120021953
    Abstract: The present invention provides compositions, including vectors, and methods for the rapid subcloning of nucleic acid sequences in vivo and in vitro. In particular, the invention provides vectors used to contain a gene of interest that comprise a sequence-specific recombinase target site. These vectors are used to rapidly transfer the gene or genes of interest into any vector that contains a sequence-specific recombinase target site located downstream of a regulatory element so that the gene of interest may be regulated.
    Type: Application
    Filed: December 22, 2010
    Publication date: January 26, 2012
    Inventors: Stephen Elledge, Qinghua Liu
  • Publication number: 20110274716
    Abstract: A composition comprises extract of fucoxanthin, wherein said composition further comprises tocotrienols and/or fucoidan. Said composition can be used to treat obesity. Said composition shows outstanding effect of weight loss. There is outstanding synergy effect among those constituents of the composition.
    Type: Application
    Filed: January 19, 2009
    Publication date: November 10, 2011
    Applicant: Beijing Gingko Group Biological Technology Co., Ltd.
    Inventors: Yanmei Li, Qinghua Liu
  • Publication number: 20090215648
    Abstract: The present invention provides compositions, including vectors, and methods for the rapid subcloning of nucleic acid sequences in vivo and in vitro. In particular, the invention provides vectors used to contain a gene of interest that comprise a sequence-specific recombinase target site. These vectors are used to rapidly transfer the gene or genes of interest into any vector that contains a sequence-specific recombinase target site located downstream of a regulatory element so that the gene of interest may be regulated.
    Type: Application
    Filed: April 4, 2007
    Publication date: August 27, 2009
    Inventors: Stephen J. Elledge, Qinghua Liu
  • Patent number: 7144714
    Abstract: Methods for making siRNA comprise recombinantly coexpressing a Dicer protein with an R2D2 protein to form a complex comprising the R2D2 protein and the Dicer protein, and contacting the complex with a double-stranded (ds) RNA under conditions wherein the complex cleaves the dsRNA into siRNA. The R2D2 protein may be a Drosophila R2D2 protein and the Dicer protein may be a Drosophila Dicer-2 protein. The Dicer protein and the R2D2 protein may be coexpressed in insect cells, such as S2, Sf9 or Hi5 cells, using a baculovirus expression system.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: December 5, 2006
    Assignee: Board of Regents, The University of Texas System
    Inventors: Xiaodong Wang, Qinghua Liu
  • Publication number: 20050136447
    Abstract: The present invention provides compositions, including vectors, and methods for the rapid subcloning of nucleic acid sequences in vivo and in vitro. In particular, the invention provides vectors used to contain a gene of interest that comprise a sequence-specific recombinase target site. These vectors are used to rapidly transfer the gene or genes of interest into any vector that contains a sequence-specific recombinase target site located downstream of a regulatory element so that the gene of interest may be regulated.
    Type: Application
    Filed: September 30, 2004
    Publication date: June 23, 2005
    Inventors: Stephen Elledge, Qinghua Liu
  • Publication number: 20050069990
    Abstract: Methods for making siRNA comprise recombinantly coexpressing a Dicer protein with an R2D2 protein to form a complex comprising the R2D2 protein and the Dicer protein, and contacting the complex with a double-stranded (ds) RNA under conditions wherein the complex cleaves the dsRNA into siRNA. The R2D2 protein may be a Drosophila R2D2 protein and the Dicer protein may be a Drosophila Dicer-2 protein. The Dicer protein and the R2D2 protein may be coexpressed in insect cells, such as S2, Sf9 or Hi5 cells, using a baculovirus expression system.
    Type: Application
    Filed: September 25, 2003
    Publication date: March 31, 2005
    Inventors: Xiaodong Wang, Qinghua Liu
  • Patent number: 6828093
    Abstract: The present invention provides compositions, including vectors, and methods for the rapid subcloning of nucleic acid sequences in vivo and in vitro. In particular, the invention provides vectors used to contain a gene of interest that comprise a sequence-specific recombinase target site. These vectors are used to rapidly transfer the gene or genes of interest into any vector that contains a sequence-specific recombinase target site located downstream of a regulatory element so that the gene of interest may be regulated.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: December 7, 2004
    Assignee: Baylor College of Medicine
    Inventors: Stephen J. Elledge, Qinghua Liu
  • Publication number: 20040203016
    Abstract: The present invention provides compositions, including vectors, and methods for the rapid subcloning of nucleic acid sequences in vivo and in vitro. In particular, the invention provides vectors used to contain a gene of interest that comprise a sequence-specific recombinase target site. These vectors are used to rapidly transfer the gene or genes of interest into any vector that contains a sequence-specific recombinase target site located downstream of a regulatory element so that the gene of interest may be regulated.
    Type: Application
    Filed: July 18, 2003
    Publication date: October 14, 2004
    Inventors: Stephen J. Elledge, Qinghua Liu
  • Publication number: 20030108903
    Abstract: The present invention relates to a molecular computer used to perform mathematical calculations and logical operations. In particular, the molecular computer disclosed herein simulates circuit-SAT mathematical models, and is thus a generalized computer. The present invention further relates to compositions and methods for performing biochemical reactions on a solid support.
    Type: Application
    Filed: July 19, 2002
    Publication date: June 12, 2003
    Inventors: Liman Wang, Robert M. Corn, Lloyd M. Smith, Qinghua Liu, Anne E. Condon
  • Patent number: 5851808
    Abstract: The present invention provides compositions, including vectors, and methods for the rapid subcloning of nucleic acid sequences in vivo and in vitro. In particular, the invention provides vectors used to contain a gene of interest that comprise a sequence-specific recombinase target site. These vectors are used to rapidly transfer the gene of interest into any expression vector that contains a sequence-specific recombinase target site located downstream of a promoter element so that the gene of interest may be expressed.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: December 22, 1998
    Assignee: Baylor College of Medicine
    Inventors: Stephen J. Elledge, Qinghua Liu