Patents by Inventor Xiaolan Zhou

Xiaolan Zhou 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: 20120063465
    Abstract: A transport network employs dual homing to an access network to provide connectivity from multiple network switches. Dual homing is a mechanism by which an access network employs pair of switches in the transport network as if it were connecting to a single device. Conventional arrangements for defining multiple paths from a transport network to an access network suffer from the shortcomings of potential routing loops, increased hops to the access network, and inability or inconsistency with forwarding to different types of access networks, and may involve redirecting traffic absent faults in the access network. The dual homed network switches identify the type of access network and perform switching logic corresponding to the access network type to provide comprehensive dual-homed support to the access network independently of the type of transport employed in the access network, and employ redirection only if there is a fault in the access network.
    Type: Application
    Filed: October 19, 2010
    Publication date: March 15, 2012
    Applicant: AVAYA INC.
    Inventors: Srikanth Keesara, Sakthivadivu Saravanaraj, Liming Sun, Xiaolan Zhou
  • Patent number: 8067562
    Abstract: The present invention provides novel activin IIB5 receptor polypeptides capable of binding and inhibiting the activities of activin A, myostatin, or GDF-11. The present invention also provides polynucleotides, vectors and host cells capable of producing the receptor polypeptides. Compositions and methods for treating muscle-wasting, metabolic and other disorders are also provided.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: November 29, 2011
    Assignee: Amgen Inc.
    Inventors: HQ Han, Keith Soo-Nyung Kwak, Xiaolan Zhou
  • Publication number: 20110281796
    Abstract: The present invention provides novel activin IIB5 receptor polypeptides capable of binding and inhibiting the activities of activin A, myostatin, or GDF-11. The present invention also provides polynucleotides, vectors and host cells capable of producing the receptor polypeptides. Compositions and methods for treating muscle-wasting, metabolic and other disorders are also provided.
    Type: Application
    Filed: July 25, 2011
    Publication date: November 17, 2011
    Applicant: Amgen Inc.
    Inventors: HQ Han, Keith Soo-Nyung Kwak, Xiaolan Zhou
  • Publication number: 20110183897
    Abstract: The present invention provides variant activin IIB soluble receptor polypeptides and proteins capable of binding and inhibiting the activities of activin A, myostatin, or GDF-11. The present invention also provides polynucleotides, vectors and host cells capable of producing the variant polypeptides and proteins. Compositions and methods for treating muscle-wasting and other diseases and disorders are also provided.
    Type: Application
    Filed: April 5, 2011
    Publication date: July 28, 2011
    Applicant: Amgen Inc.
    Inventors: Jeonghoon Sun, Lei-Ting Tony Tam, HQ Han, Keith Soo-Nyung Kwak, Xiaolan Zhou
  • Patent number: 7947646
    Abstract: The present invention provides variant activin IIB soluble receptor polypeptides and proteins capable of binding and inhibiting the activities of activin A, myostatin, or GDF-11. The present invention also provides polynucleotides, vectors and host cells capable of producing the variant polypeptides and proteins. Compositions and methods for treating muscle-wasting and other diseases and disorders are also provided.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: May 24, 2011
    Assignee: Amgen Inc.
    Inventors: Jeonghoon Sun, Lei-Ting Tony Tam, Hui-Quan Han, Keith Soo-Nyung Kwak, Xiaolan Zhou
  • Publication number: 20090234106
    Abstract: The disclosure provides compositions and methods relating to or derived from anti-activin A binding proteins, including antibodies. In particular embodiments, the disclosure provides fully human, humanized, and chimeric anti-activin A antibodies that bind human activin A, activin A-binding fragments and derivatives of such antibodies, and activin A-binding polypeptides comprising such fragments. Other embodiments provide nucleic acids encoding such antibodies, antibody fragments and derivatives and polypeptides, cells comprising such polynucleotides, methods of making such antibodies, antibody fragments and derivatives and polypeptides, and methods of using such antibodies, antibody fragments and derivatives and polypeptides, including methods of treating or diagnosing subjects having activin A-related disorders or conditions including cachexia related to gonadal cancer, other cancers, rheumatoid arthritis, and other diseases.
    Type: Application
    Filed: September 7, 2007
    Publication date: September 17, 2009
    Applicant: AMGEN INC.
    Inventors: HQ HAN, Qing CHEN, Keith Soo-Nyung KWAK, Xiaolan ZHOU
  • Publication number: 20090227497
    Abstract: The present invention provides variant activin IIB soluble receptor polypeptides and proteins capable of binding and inhibiting the activities of activin A, myostatin, or GDF-11. The present invention also provides polynucleotides, vectors and host cells capable of producing the variant polypeptides and proteins. Compositions and methods for treating muscle-wasting and other diseases and disorders are also provided.
    Type: Application
    Filed: March 5, 2008
    Publication date: September 10, 2009
    Applicant: Amgen Inc.
    Inventors: Jeonghoon Sun, Lei-Ting Tony Tam, Han Hq, Keith Soo-Nyung Kwak, Xiaolan Zhou
  • Publication number: 20070117130
    Abstract: The present invention provides novel activin IIB5 receptor polypeptides capable of binding and inhibiting the activities of activin A, myostatin, or GDF-11. The present invention also provides polynucleotides, vectors and host cells capable of producing the receptor polypeptides. Compositions and methods for treating muscle-wasting, metabolic and other disorders are also provided.
    Type: Application
    Filed: October 31, 2006
    Publication date: May 24, 2007
    Applicant: Amgen Inc.
    Inventors: Hq Han, Keith Kwak, Xiaolan Zhou