Patents by Inventor Guoqiang Wang

Guoqiang Wang 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).

  • Processes for the preparation of novel benzimidazole derivatives
    Patent number: 8921573
    Abstract: The present invention relates to processes and intermediates for the preparation of novel benzimidazole derivatives, especially in the synthesis of hepatitis C virus NS5A inhibitors.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: December 30, 2014
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Datong Tang, Guoyou Xu, Xiaowen Peng, Lu Ying, Ce Wang, Hui Cao, Jiang Long, In Jong Kim, Guoqiang Wang, Yao-Ling Qiu, Yat Sun Or
  • [N-Me-4-hydroxyleucine]-9-cyclosporin analogues for treatment and prevention of hepatitis C infection
    Patent number: 8906853
    Abstract: The present invention relates to novel cyclosporine analogues having antiviral activity against HCV and useful in the treatment of HCV infections. More particularly, the invention relates to novel cyclosporine analogue compounds, compositions containing such compounds and methods for using the same, as well as processes for making such compounds.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: December 9, 2014
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Yat Sun Or, In Jong Kim, Jiang Long, Lijuan Jiang, Sheng Sean Liu, Guoqiang Wang
  • Multi-Tier Push Service Control Architecture for Large Scale Conference Over ICN
    Publication number: 20140344378
    Abstract: A network element (NE) comprising a memory configured to store a digest log for a conference, a receiver coupled to the memory and configured to receive a first message from a first of a plurality of service proxies of the conference, wherein the first message comprises a signature profile of a first of a plurality of participants of the conference associated with the first service proxy, a processor coupled to the receiver and the memory and configured to track a state of the conference by updating the digest log according to the first message, and a transmitter coupled to the processor and configured to send a plurality of second messages to indicate the digest log update to the service proxies without a transmission request from the service proxies.
    Type: Application
    Filed: May 16, 2014
    Publication date: November 20, 2014
    Applicant: Futurewei Technologies, Inc.
    Inventors: Asit Chakraborti, Guoqiang Wang, Jun Wei, Ravishankar Ravindran, Xuan Liu
  • Multi-Tier Push Hybrid Service Control Architecture for Large Scale Conferencing over ICN
    Publication number: 20140344379
    Abstract: A network element (NE) comprising a memory configured to store a digest log for a conference, a receiver configured to receive a first message from a first of a plurality of participants associated with the NE, wherein the first message comprises a signature profile of the first participant, a processor coupled to the receiver and the memory and configured to track a state of the conference by performing a first update of the digest log according to the first message, and a transmitter coupled to the processor and configured to send a second message to a first of a plurality of service proxies that serve the conference, wherein the second messages indicate the updated digest log.
    Type: Application
    Filed: May 16, 2014
    Publication date: November 20, 2014
    Applicant: Futurewei Technologies, Inc.
    Inventors: Asit Chakraborti, Guoqiang Wang, Jun Wei, Ravishankar Ravindran, Xuan Liu
  • Developing programs for hardware implementation in a graphical specification and constraint language
    Patent number: 8887121
    Abstract: System and method for specifying and implementing programs. A graphical program is created in a graphical specification and constraint language that allows specification of a model of computation and explicit declaration of constraints in response to user input. The graphical program includes a specified model of computation, a plurality of interconnected functional blocks that visually indicate functionality of the graphical program in accordance with the specified model of computation, and specifications or constraints for the graphical program or at least one of the functional blocks in the graphical program. The specified model of computation and specifications or constraints are useable to analyze the graphical program or generate a program or simulation.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: November 11, 2014
    Assignee: National Instruments Corporation
    Inventors: Kaushik Ravindran, Jacob Kornerup, Rhishikesh Limaye, Guang Yang, Guoqiang Wang, Jeffrey N. Correll, Arkadeb Ghosal, Sadia B. Malik, Charles E. Crain, II, Michael J. Trimborn
  • Method and apparatus for a control plane to manage domain-based security and mobility in an information centric network
    Patent number: 8881236
    Abstract: A networking system comprising a virtual group controller in an information centric network configured to enable mobility and security for a plurality of users groups of the information centric network, a plurality of user groups coupled to the virtual group controller and associated with the users, a plurality of agents that are each associated with one of the user groups, and a database for trusted service profile coupled to the virtual group controller, wherein the virtual group controller is configured to interact with the agents to enable mobility for the user groups using a server-less domain-based naming scheme.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: November 4, 2014
    Assignee: Futurewei Technologies, Inc.
    Inventors: Guoqiang Wang, Xinwen Zhang, Ravi Ravindran
  • PROCESSES FOR THE PREPARATION OF NOVEL BENZIMIDAZOLE DERIVATIVES
    Publication number: 20140316143
    Abstract: The present invention relates to processes and intermediates for the preparation of novel benzimidazole derivatives, especially in the synthesis of hepatitis C virus NS5A inhibitors.
    Type: Application
    Filed: April 16, 2014
    Publication date: October 23, 2014
    Applicant: ENANTA PHARMACEUTICALS, INC.
    Inventors: Datong Tang, Guoyou Xu, Xiaowen Peng, Lu Ying, Ce Wang, Hui Cao, Jiang Long, In Jong Kim, Guoqiang Wang, Yao-Ling Qiu, Yat Sun Or
  • Method and apparatus to create and manage a differentiated security framework for content oriented networks
    Patent number: 8863227
    Abstract: A network component comprising a receiver configured to receive a signed content item and an associated security information from a publisher, wherein the security information indicates which group from a plurality of groups is allowed to access the signed content item, a storage unit configured to cache the content item and the associated security information, a processor to implement procedures to enforce security policies defined by the security information, and a transmitter configured to send the signed content item from the cache to a subscriber when the subscriber is a member of a group indicated by the security information as authorized to access the signed content item.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: October 14, 2014
    Assignee: Futurewei Technologies, Inc.
    Inventors: Xinwen Zhang, Ravishankar Ravindran, Guoqiang Wang, Guangyu Shi
  • Macrocyclic nucleoside phosphoramidate derivatives
    Patent number: 8846638
    Abstract: The present invention provides nucleoside phosphoramidate compounds of Formula I, where R1, R2a, R2b, R3, R4, R5a, R5b, R6, R7, R8a, R8b, M and W are as defined herein. The invention further includes pharmaceutical compositions comprising a compound of Formula I, methods of use of these compounds for treating a viral infection, and methods of producing these compounds.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: September 30, 2014
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Yat Sun Or, Jun Ma, Guoqiang Wang
  • MACROCYCLIC HEPATITIS C SERINE PROTEASE INHIBITORS
    Publication number: 20140287992
    Abstract: The present invention relates to novel macrocyclic compounds and methods of treating a hepatitis C infection in a subject in need of such therapy with said macrocyclic compounds. The present invention further relates to pharmaceutical compositions comprising the compounds of the present invention, or pharmaceutically acceptable salts, esters, or prodrugs thereof, in combination with a pharmaceutically acceptable carrier or excipient.
    Type: Application
    Filed: June 9, 2014
    Publication date: September 25, 2014
    Inventors: Hui-Ju Chen, Keith F. McDaniel, Brian E. Green, Jason P. Shanley, Albert W. Kruger, Jorge Gandarilla, Dennie S. Welch, Russell D. Cink, Steven C. Cullen, Yonghua Gai, Guoqiang Wang, Yat Sun Or
  • Traffic engineering and server selection for content distribution
    Patent number: 8842533
    Abstract: An apparatus comprising a traffic engineering (TE) and server selection (SS) component configured to couple to an SS component and operate at a first time scale based on SS policies from the SS component, wherein the SS is configured to operate at a second timescale based on TE policies from the TE and SS component, and wherein the second timescale has a finer time granularity than the first time scale by at least one order of magnitude. Also disclosed is a network component comprising a receiver configured to receive one or more SS policies from a content provider or customer node, a logic circuit configured to compute a plurality of joint TE and SS policies for a plurality of network nodes based on the received SS policies, and a transmitter configured to send the joint TE and SS components to the content provider or customer node.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: September 23, 2014
    Assignee: Futurewei Technologies, Inc.
    Inventors: Xiangyang Xu, Ravishankar Ravindran, Haiyong Xie, Jianyun Zhu, Liufei Wen, Guangyu Shi, Guoqiang Wang, Pengwei Wang
  • Computation of caching policy based on content and network constraints
    Patent number: 8838724
    Abstract: An apparatus comprising a first content oriented network architecture (CONA) node configured to couple to at least one second CONA nodes and implement collaborative caching in accordance with criteria comprising at least one content caching objective and at least one network operational objective, wherein the content caching objectives are in accordance with the network operational objectives.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: September 16, 2014
    Assignee: Futurewei Technologies, Inc.
    Inventors: Haiyong Xie, Guangyu Shi, Guoqiang Wang, Pengwei Wang
  • Method for Scalable Routing in Content-Oriented Networks
    Publication number: 20140233575
    Abstract: A method for routing content, comprising receiving an interest packet from a first face, wherein the interest packet comprises a content name field populated with a first content name, a destination field, and a broadcast flag field set to broadcast, wherein the broadcast field indicates whether the first face has previously received a request having the first content name, and receiving a data packet from a second face, wherein the data packet comprises a content name field populated with a second content name, a source field populated with the identity of a source of data associated with the second content name, and a data field populated with the data associated with the second content name.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 21, 2014
    Applicant: Futurewei Technologies, Inc.
    Inventors: Haiyong Xie, Guoqiang Wang, Guangyu Shi
  • 5, 6-D2 URIDINE NUCLEOSIDE/TIDE DERIVATIVES
    Publication number: 20140219958
    Abstract: In one aspect, the invention provides compounds represented by Formula I, and pharmaceutically acceptable salts, esters, stereoisomers, tautomers, solvates, and combinations thereof, pharmaceutical compositions comprising these compounds and the use of these compounds for treating a viral infection in a subject.
    Type: Application
    Filed: January 31, 2014
    Publication date: August 7, 2014
    Applicant: ENANTA PHARMACEUTICALS, INC.
    Inventors: Jay R. Luly, Jun Ma, Guoqiang Wang, Yat Sun Or
  • MACROCYCLIC PROLINE DERIVED HCV SERINE PROTEASE INHIBITORS
    Publication number: 20140194350
    Abstract: The present invention discloses compounds of Formula I or pharmaceutically acceptable salts, esters, or prodrugs thereof: which inhibit serine protease activity, particularly the activity of hepatitis C virus (HCV) NS3-NS4A protease. Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
    Type: Application
    Filed: January 2, 2014
    Publication date: July 10, 2014
    Applicant: Enanta Pharmaceuticals, Inc.
    Inventors: Yat Sun Or, Jun Ma, Guoqiang Wang, Jiang Long, Bin Wang
  • PROCESSES FOR THE PREPARATION OF 5-AZASPIRO[2.4]HEPTANE-6-CARBOXYLIC ACID AND ITS DERIVATIVES
    Publication number: 20140187793
    Abstract: The present invention relates generally to an improved process for the preparation of 5-azaspiro[2.4]heptane-6-carboxylic acid and its derivatives which are useful intermediates in the synthesis of biologically active molecules, especially in the synthesis of hepatits C virus NS5A inhibitors.
    Type: Application
    Filed: November 18, 2013
    Publication date: July 3, 2014
    Applicant: ENANTA PHARMACEUTICALS, INC.
    Inventors: Yao-Ling Qiu, Xiaowen Peng, In Jong Kim, Hui Cao, Datong Tang, Yat Sun Or, Guoqiang Wang, Guoyou Xu
  • 6,11-BRIDGED BIARYL MACROLIDES
    Publication number: 20140187780
    Abstract: The present invention discloses compounds of formula I, II or X, or pharmaceutically acceptable salts, esters, or prodrugs thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.
    Type: Application
    Filed: December 24, 2013
    Publication date: July 3, 2014
    Applicant: Enanta Pharmaceuticals, Inc.
    Inventors: In Jong Kim, Tongzhu Liu, Jiang Long, Guoqiang Wang, Yao-Ling Qiu, Heejin Kim, Yanchun Wang, Ly Tam Phan, Yat Sun Or
  • Method for flexible data protection with dynamically authorized data receivers in a content network or in cloud storage and content delivery services
    Patent number: 8769705
    Abstract: A networking system comprising an application service that runs on a cloud infrastructure and is configured to receive dual encrypted content from a content provider and re-encrypt the dual encrypted content to enable dynamic user group control for group-based user authorization, and a cloud storage service coupled to the application service and configured to store the dual encrypted content from the content provider and the re-encrypted dual encrypted content from the application service, wherein the application service and the storage service are configured to communicate and operate with a content delivery service that uses a content delivery network (CDN) to deliver the re-encrypted content to one or more users in a group authorized by the content provider.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: July 1, 2014
    Assignee: Futurewei Technologies, Inc.
    Inventors: Xinwen Zhang, Huijun Xiong, Guoqiang Wang
  • Macrocyclic hepatitis C serine protease inhibitors
    Patent number: 8748374
    Abstract: The present invention relates to novel macrocyclic compounds and methods of treating a hepatitis C infection in a subject in need of such therapy with said macrocyclic compounds. The present invention further relates to pharmaceutical compositions comprising the compounds of the present invention, or pharmaceutically acceptable salts, esters, or prodrugs thereof, in combination with a pharmaceutically acceptable carrier or excipient.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: June 10, 2014
    Assignee: AbbVie, Inc.
    Inventors: Hui-Ju Chen, Keith F. McDaniel, Brian E. Green, Jason P. Shanley, Albert W. Kruger, Jorge Gandarllla, Dennie S. Welch, Russell D. Cink, Steven C. Cullen, Yonghua Gai, Guoqiang Wang, Yat Sun Or
  • Novel [N-Me-4-hydroxyleucine]-9-Cyclosporin Analogues for Treatment and Prevention of Hepatitis C Infection
    Publication number: 20140154208
    Abstract: The present invention relates to novel cyclosporine analogues having antiviral activity against HCV and useful in the treatment of HCV infections. More particularly, the invention relates to novel cyclosporine analogue compounds, compositions containing such compounds and methods for using the same, as well as processes for making such compounds.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 5, 2014
    Applicant: ENANTA PHARMACEUTICALS, INC.
    Inventors: Yat Sun Or, In Jong Kim, Jiang Long, Lijuan Jiang, Sheng Sean Liu, Guoqiang Wang