Patents by Inventor Xiaoyan Zhang

Xiaoyan Zhang 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: 20060229260
    Abstract: This invention relates to substituted fused heterocyclic C-glycosides, compositions containing them, and methods of using them, for example, for the treatment or prophylaxis of diabetes and Syndrome X.
    Type: Application
    Filed: June 15, 2006
    Publication date: October 12, 2006
    Inventors: Philip Rybczynski, Maud Urbanski, Xiaoyan Zhang
  • Publication number: 20060217323
    Abstract: Substituted indazole-O-glucosides, compositions containing them, and methods of using them, for example for the treatment of diabetes and Syndrome X are disclosed.
    Type: Application
    Filed: June 2, 2006
    Publication date: September 28, 2006
    Inventors: Mona Patel, Philip Rybczynski, Maud Urbanski, Xiaoyan Zhang
  • Patent number: 7094763
    Abstract: This invention relates to substituted fused heterocyclic C-glycosides, compositions containing them, and methods of using them, for example, for the treatment or prophylaxis of diabetes and Syndrome X.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: August 22, 2006
    Assignee: Janssen Pharaceutica, N.V.
    Inventors: Philip Rybczynski, Maud Urbanski, Xiaoyan Zhang
  • Patent number: 7084124
    Abstract: Substituted indazole-O-glucosides, compositions containing them, and methods of using them, for example for the treatment of diabetes and Syndrome X are disclosed.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: August 1, 2006
    Assignee: Janssen Pharmaceutica, N.V.
    Inventors: Mona Patel, Philip J. Rybczynski, Maud Urbanski, Xiaoyan Zhang
  • Publication number: 20060004662
    Abstract: A client generates a session key and a delegation ticket containing information for a requested delegation operation. The client generates a first copy of the session key and encrypts it using a public key of a proxy. The client generates a second copy of the session key and encrypts it using a public key of a server. The client then puts the encrypted session keys and delegation ticket into a first message that is sent to the proxy. The proxy extracts and decrypts its copy of the session key from the first message. The proxy then encrypts a proof-of-delegation data item with the session key and places it and the delegation ticket along with the encrypted copy of the session key for the server into a second message, which is sent to the server. The server extracts and decrypts its copy of the session key from the second message and uses the session key to obtain the proof-of-delegation data. Authority is successfully delegated to the proxy only if the server can verify the proof-of-delegation data.
    Type: Application
    Filed: June 30, 2004
    Publication date: January 5, 2006
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Anthony Nadalin, Bruce Rich, Xiaoyan Zhang
  • Publication number: 20050278534
    Abstract: A method, an apparatus, a system, and a computer program product are presented for validating certificates. A certificate validation service receives a certificate validation request for a target certificate from a client, thereby allowing the client to offload certificate validation tasks into an online certificate validation service that is accessible and sharable by multiple components within a data processing system. In response to a determination that the target certificate is valid or invalid, the certificate validation service sends a certificate validation response with an indicating status value that the target certificate is valid or invalid. The certificate validation service is able to cache information about previously validated certificates and the associated certificate chains, thereby enhancing the efficiency of the service. Different certificate validation policies may be applied against target certificates based upon information associated with the target certificates.
    Type: Application
    Filed: May 27, 2004
    Publication date: December 15, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Anthony Nadalin, Bruce Rich, Xiaoyan Zhang
  • Patent number: 6976076
    Abstract: An analysis of at least one authentication token for an application is provided. At least one login module within the application is identified. Responsive to a failure to access the application, principal information is retrieved associated with the at least one login module. A recovery action is then generated. The recovery action corresponds to the failure and the principal information.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: December 13, 2005
    Assignee: International Business Machines Corporation
    Inventors: Theodore Jack London Shrader, Randy Scott Humphrey, Davis Kent Soper, Xiaoyan Zhang
  • Publication number: 20050210306
    Abstract: A method, apparatus, and computer implemented instructions for synchronizing time in a network data processing system. A request for time synchronization is received at a target data processing system. A current target time at the target data processing system is placed in a reply. The reply is sent to the source data processing system. A current source time from when the reply is received at the source data processing system is compared to the current target time to generate a comparison. A synchronization factor is generated using the comparison.
    Type: Application
    Filed: May 20, 2005
    Publication date: September 22, 2005
    Inventors: Bruce Rich, Xiaoyan Zhang
  • Publication number: 20050210153
    Abstract: A method, apparatus, and computer implemented instructions for synchronizing time in a network data processing system. A request for time synchronization is received at a target data processing system. A current target time at the target data processing system is placed in a reply. The reply is sent to the source data processing system. A current source time from when the reply is received at the source data processing system is compared to the current target time to generate a comparison. A synchronization factor is generated using the comparison.
    Type: Application
    Filed: May 20, 2005
    Publication date: September 22, 2005
    Inventors: Bruce Rich, Xiaoyan Zhang
  • Patent number: 6884815
    Abstract: This invention relates to low molecular weight, non-peptidic, non-peptidomimetic, organic molecules that act as modulators of mammalian complement C5a receptors, preferably ones that act as high affinity C5a receptor ligands and also to such ligands that act as antagonists or inverse agonists of complement C5a receptors. Preferred compounds of the invention possess some or all of the following properties in that they are: 1) multi-aryl in structure, 2) heteroaryl in structure, 3) a pharmaceutically acceptable oral dose can provide a detectable in vitro effect, 4) comprise fewer than four or preferably no amide bonds, and 5) capable of inhibiting leukocyte chemotaxis at nanomolar or sub-nanomolar concentrations. This invention also relates to pharmaceutical compositions comprising such compounds and the use of such compounds in treating a variety of inflammatory and immune system disorders. Additionally, this invention relates to the use such compounds as probes for the localization of C5a receptors.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: April 26, 2005
    Assignee: Neurogen Corporation
    Inventors: Andrew Thurkauf, Xiao-shu He, He Zhao, John Peterson, Xiaoyan Zhang, Robbin Brodbeck, James Krause, George Maynard, Alan Hutchison
  • Patent number: 6883164
    Abstract: A method, program and system for mapping ASN.1 data to an object model are provided. The invention consists of identifying the start of a data stream and then generating a new object name for the data. Next, the data is parsed to get the identifier and the data length. Then the data's tag type is analyzed. If the tag type is simple, a class diagram is generated for the data and then the source code for the data is generated. If the tag type is not simple, a subroutine is called to further parse the data before generating the class diagram and source code.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: April 19, 2005
    Assignee: International Business Machines Corporation
    Inventors: Xiaoyan Zhang, Randy Scott Humphrey, Theodore Jack London Shrader, Davis Kent Soper
  • Patent number: 6874084
    Abstract: A method and apparatus for establishing a secure communication connection between a Java application or applet and a secure server is provided. An HTTPS handler is provided that may be used by Java applications or applets to establish secure communication connections with secure Web servers.
    Type: Grant
    Filed: May 2, 2000
    Date of Patent: March 29, 2005
    Assignee: International Business Machines Corporation
    Inventors: Edward Joseph Dobner, David Gerard Kuehr-McLaren, Anthony Joseph Nadalin, Xiaoyan Zhang
  • Publication number: 20050037981
    Abstract: Substituted indole-O-glucosides, compositions containing them, and methods of using them, for example for the treatment of diabetes and Syndrome X are disclosed.
    Type: Application
    Filed: July 30, 2004
    Publication date: February 17, 2005
    Inventors: Mary Beavers, Mona Patel, Philip Rybczynski, Maud Urbanski, Xiaoyan Zhang
  • Publication number: 20050037980
    Abstract: This invention relates to substituted fused heterocyclic C-glycosides, compositions containing them, and methods of using them, for example, for the treatment or prophylaxis of diabetes and Syndrome X.
    Type: Application
    Filed: July 30, 2004
    Publication date: February 17, 2005
    Inventors: Philip Rybczynski, Maud Urbanski, Xiaoyan Zhang
  • Publication number: 20050032711
    Abstract: Substituted indazole-O-glucosides, compositions containing them, and methods of using them, for example for the treatment of diabetes and Syndrome X are disclosed.
    Type: Application
    Filed: July 30, 2004
    Publication date: February 10, 2005
    Inventors: Mona Patel, Philip Rybczynski, Maud Urbanski, Xiaoyan Zhang
  • Patent number: 6723743
    Abstract: This invention relates to low molecular weight, non-peptidic, non-peptidomimetic, organic molecules that act as modulators of mammalian complement C5a receptors, preferably ones that act as high affinity C5a receptor ligands and also to such ligands that act as antagonists or inverse agonists of complement C5a receptors, preferably human C5a receptors, Preferred compounds of the invention possess one or more, and preferably two or more, three or more, four or more, or all of the following properties in that they are; 1) multi-aryl in structure (having a plurality of un-fused or fused aryl groups), 2) heteroaryl in structure, 3) orally available in vivo (such that a sub-lethal or preferably a pharmaceutically acceptable oral dose can provide a detectable in vitro effect such as a reduction of C5a-induced neutropenia), 4) comprised of fewer than four, preferably fewer than three, or fewer than two, or no amide bonds, and 5) capable of inhibiting leukocyte chemotaxis at nanomolar concentrations and preferably at
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: April 20, 2004
    Assignee: Neurogen Corporation
    Inventors: Andrew Thurkauf, Xiao-shu He, He Zhao, John Peterson, Xiaoyan Zhang, Robbin Brodbeck, James Krause, George Maynard, Alan Hutchison
  • Patent number: 6544996
    Abstract: Disclosed are compounds of the formula: or pharmaceutically acceptable addition salts thereof wherein: R1, R2, R3 R4 and R5, R6, R7, and R8 represent organic and/or inorganic substituents as defined herein, which compounds are useful for the treatment and/or prevention of neuropsychological disorders including, but not limited to, schizophrenia, mania, dementia, depression, anxiety, compulsive behavior, substance abuse, Parkinson-like motor disorders and motion disorders related to the use of neuroleptic agents.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: April 8, 2003
    Assignee: Neurogen Corporation
    Inventors: Xiaoyan Zhang, Jennifer Tran, He Zhao, Andrew Thurkauf
  • Publication number: 20030005349
    Abstract: An analysis of at least one authentication token for an application is provided. At least one login module within the application is identified. Responsive to a failure to access the application, principal information is retrieved associated with the at least one login module. A recovery action is then generated. The recovery action corresponds to the failure and the principal information.
    Type: Application
    Filed: June 29, 2001
    Publication date: January 2, 2003
    Applicant: IBM Corporation
    Inventors: Theodore Jack London Shrader, Randy Scott Humphrey, Davis Kent Soper, Xiaoyan Zhang
  • Publication number: 20020193364
    Abstract: Disclosed are 1-Azatricyclic-4-benzylpiperazine compounds which are useful for the treatment and/or prevention of neuropsychological disorders including, but not limited to, schizophrenia, mania, dementia, depression, anxiety, compulsive behavior, substance abuse, Parkinson-like motor disorders and motion disorders related to the use of neuroleptic agents. Pharmaceutical compositions, including packaged pharmaceutical compositions, are further provided. Compounds of the invention are also useful as probes for the localization of GABAA receptors in tissue samples.
    Type: Application
    Filed: May 7, 2002
    Publication date: December 19, 2002
    Applicant: Neurogen Corporation
    Inventors: Xiaoyan Zhang, Kevin Hodgetts, Stanislaw Rachwal, Daniel Rosewater, Andrew Thurkauf
  • Patent number: 6482844
    Abstract: Provided are compounds (and pharmaceutically acceptable non-toxic salt of such compounds) of the formula: in which A and B are C1-C3 alkylene; R1 is C1-C6 alkyl; R2 and R3 are hydrogen or C1-C6 alkyl; U and V are C1-C6 alkyl or halogen; X, Y and Z are hydrogen, C1-C6 alkyl, trifluoromethyl, C1-C6 alkoxy, trifluoromethoxy, halogen, or cyano; and W represents up to three substituents which are C1-C6 alkyl, trifluoromethyl, C1-C6 alkoxy, trifluoromethoxy, halogen, hydroxy, amino, or cyano. These compounds act as modulators of blood glucose levels and are useful for the treatment of diabetes, eating disorders, and obesity. Pharmaceutical compositions and methods of use of the compounds as pharmaceutical agents are also provided.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: November 19, 2002
    Assignee: Neurogen Corporation
    Inventors: Xiao-Shu He, Xiaoyan Zhang, He Zhao, Robert DeSimone, Andrew Thurkauf