Patents by Inventor Liping Geng

Liping Geng 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: 20180180623
    Abstract: Compositions are disclosed that include a support having on a surface thereof at least an inner polysaccharide layer and an outer polysaccharide layer. The outer polysaccharide layer has pendant moieties each comprising a terminal amine functionality. The point of linkage of the pendant moiety to the outer polysaccharide layer does not comprise an amide bond. The composition may be employed in a method of conjugating a member of a specific binding pair to a particle. The method comprises reacting the terminal amine functionality of the composition with the member of the specific binding pair, which comprises an amine-reactive functionality.
    Type: Application
    Filed: February 19, 2018
    Publication date: June 28, 2018
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Zhu Teng, Liping Geng, Martin Drinan
  • Patent number: 9720004
    Abstract: Methods and reagents are disclosed for conducting assays. Embodiments of the present methods and reagents are concerned with chemiluminescent reagents for determining the presence and/or amount of an analyte in a sample suspected of containing the analyte. The reagent is non-particulate and comprises a binding partner for the analyte and a chemiluminescent composition comprising an olefinic compound and a metal chelate. In embodiments of an assay, a combination is provided that comprises a sample suspected of containing the analyte, a chemiluminescent reagent as described above and a sensitizer reagent capable of generating singlet oxygen. The combination is subjected to conditions for binding of the analyte to the binding partner for the analyte. The sensitizer is activated and the amount of luminescence generated by the chemiluminescent composition is detected wherein the amount of luminescence is related to the amount of the analyte in the sample.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: August 1, 2017
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Pratap Singh, Yi Feng Zheng, Liping Geng, Roland Janzen, Carsten Schelp
  • Publication number: 20160231336
    Abstract: Methods and reagents are disclosed for conducting assays. Embodiments of the present methods and reagents are concerned with chemiluminescent reagents for determining the presence and/or amount of an analyte in a sample suspected of containing the analyte. The reagent is non-particulate and comprises a binding partner for the analyte and a chemiluminescent composition comprising an olefinic compound and a metal chelate. In embodiments of an assay, a combination is provided that comprises a sample suspected of containing the analyte, a chemiluminescent reagent as described above and a sensitizer reagent capable of generating singlet oxygen. The combination is subjected to conditions for binding of the analyte to the binding partner for the analyte. The sensitizer is activated and the amount of luminescence generated by the chemiluminescent composition is detected wherein the amount of luminescence is related to the amount of the analyte in the sample.
    Type: Application
    Filed: April 18, 2016
    Publication date: August 11, 2016
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Pratap Singh, Yi Feng Zheng, Liping Geng, Roland Janzen, Carsten Schelp
  • Patent number: 9380561
    Abstract: A method and a system for implementing CS domain paging are disclosed, applied in scenarios of performing CS domain paging for a called UE after ISR function is introduced in PS domain, and comprising: MSC/VLR only storing one Gs association; during CS domain paging, MSC/VLR sending a CS domain paging request message to the PS domain network element recorded in the Gs association in the MSC/VLR; after receiving the message, the PS domain network element initiating one or two CS domain paging procedures in the PS domain to transmit the CS domain paging to the called UE; or sending a paging response to the MSC/VLR directly without initiating CS domain paging. A method for transferring service information is also disclosed, applied in the scenarios that ISR function is activated in PS domain, and comprising: transmitting service message(s) between the ISR-associated PS domain network elements serving the UE to implement transfer of service information.
    Type: Grant
    Filed: January 24, 2009
    Date of Patent: June 28, 2016
    Assignee: ZTE Corporation
    Inventors: Ying Hu, Zhiming Yu, Jinguo Zhu, Lei Yu, Liping Geng
  • Patent number: 9347947
    Abstract: Methods and reagents are disclosed for conducting assays. Embodiments of the present methods and reagents are concerned with chemiluminescent reagents for determining the presence and/or amount of an analyte in a sample suspected of containing the analyte. The reagent is non-particulate and comprises a binding partner for the analyte and a chemiluminescent composition comprising an olefinic compound and a metal chelate. In embodiments of an assay, a combination is provided that comprises a sample suspected of containing the analyte, a chemiluminescent reagent as described above and a sensitizer reagent capable of generating singlet oxygen. The combination is subjected to conditions for binding of the analyte to the binding partner for the analyte. The sensitizer is activated and the amount of luminescence generated by the chemiluminescent composition is detected wherein the amount of luminescence is related to the amount of the analyte in the sample.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: May 24, 2016
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Pratap Singh, Yi Feng Zheng, Liping Geng, Roland Janzen, Carsten Schelp
  • Publication number: 20150072438
    Abstract: Compositions are disclosed that include a support having on a surface thereof at least an inner polysaccharide layer and an outer polysaccharide layer. The outer polysaccharide layer has pendant moieties each comprising a terminal amine functionality. The point of linkage of the pendant moiety to the outer polysaccharide layer does not comprise an amide bond. The composition may be employed in a method of conjugating a member of a specific binding pair to a particle. The method comprises reacting the terminal amine functionality of the composition with the member of the specific binding pair, which comprises an amine-reactive functionality.
    Type: Application
    Filed: April 11, 2013
    Publication date: March 12, 2015
    Applicant: Siemens Healthcare Diagnostic Inc.
    Inventors: Zhu Teng, Liping Geng, Martin Drinan
  • Publication number: 20140356885
    Abstract: Methods and reagents are disclosed for preparing a support for reaction of the support with an assay molecule. In the method the support is treated with a detergent at a concentration of about 0.01% to about 5% (by weight) at a temperature of about 4° C. to about 50° C. for a period of about 1 hour to about 24 hours and subsequently the support is washed. The support is contacted with the assay molecule under conditions for covalently binding the assay molecule to the support to form a conjugate of the support and the assay molecule.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Rafael Bartz, Pratap Singh, Liping Geng, Gladys Privon
  • Publication number: 20110013623
    Abstract: A method and a system for implementing CS domain paging are disclosed, applied in scenarios of performing CS domain paging for a called UE after ISR function is introduced in PS domain, and comprising: MSC/VLR only storing one Gs association; during CS domain paging, MSC/VLR sending a CS domain paging request message to the PS domain network element recorded in the Gs association in the MSC/VLR; after receiving the message, the PS domain network element initiating one or two CS domain paging procedures in the PS domain to transmit the CS domain paging to the called UE; or sending a paging response to the MSC/VLR directly without initiating CS domain paging. A method for transferring service information is also disclosed, applied in the scenarios that ISR function is activated in PS domain, and comprising: transmitting service message(s) between the ISR-associated PS domain network elements serving the UE to implement transfer of service information.
    Type: Application
    Filed: January 24, 2009
    Publication date: January 20, 2011
    Applicant: ZTE CORPORATION
    Inventors: Ying Hu, Zhiming Yu, Jinguo Zhu, Lei Yu, Liping Geng
  • Publication number: 20110009121
    Abstract: A method for user equipment realizing handover across access networks in active state includes: during the process for a user equipment in active state handing over from an evolved packet system to a universal mobile telecommunications system or a global system for mobile communications, an evolved universal mobile telecommunication system radio access network notifies the user equipment whether this handover is a handover due to an incoming call of a circuit switched domain before informing the user equipment of performing the handover or when informing the user equipment of performing the handover; the user equipment will send a paging response message to a mobile switching center/visitor location register after handing over to the universal mobile telecommunications system or the global system for mobile communications if this handover is a handover due to an incoming call of the circuit switched domain.
    Type: Application
    Filed: December 26, 2008
    Publication date: January 13, 2011
    Applicant: ZTE Corporation
    Inventors: Zhiming Yu, Shilin You, Liping Geng
  • Publication number: 20100233725
    Abstract: Methods and reagents are disclosed for conducting assays. Embodiments of the present methods and reagents are concerned with chemiluminescent reagents for determining the presence and/or amount of an analyte in a sample suspected of containing the analyte. The reagent is non-particulate and comprises a binding partner for the analyte and a chemiluminescent composition comprising an olefinic compound and a metal chelate. In embodiments of an assay, a combination is provided that comprises a sample suspected of containing the analyte, a chemiluminescent reagent as described above and a sensitizer reagent capable of generating singlet oxygen. The combination is subjected to conditions for binding of the analyte to the binding partner for the analyte. The sensitizer is activated and the amount of luminescence generated by the chemiluminescent composition is detected wherein the amount of luminescence is related to the amount of the analyte in the sample.
    Type: Application
    Filed: March 12, 2009
    Publication date: September 16, 2010
    Applicant: Siemens Healthcare Diagnostics Inc., a corporation of California
    Inventors: Pratap Singh, Yi Feng Zheng, Liping Geng, Roland Janzen, Carsten Schelp