Patents by Inventor Stephen M. W. Chang

Stephen M. W. Chang 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).

  • Patent number: 7977091
    Abstract: The present disclosure provides compositions and methods for utilizing recombinant alphavirus vectors. Also disclosed are compositions and methods for making and utilizing eukaryotic layered vector initiation systems.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: July 12, 2011
    Assignee: Novartis Vaccines & Diagnostics, Inc.
    Inventors: Thomas W. Dubensky, Jr., John M Polo, Carlos E Ibanez, Stephen M. W. Chang, Douglas J Jolly, David A Driver, Barbara A Belli
  • Publication number: 20100173412
    Abstract: The present disclosure provides compositions and methods for utilizing recombinant alphavirus vectors.
    Type: Application
    Filed: August 10, 2009
    Publication date: July 8, 2010
    Inventors: Thomas W. Dubensky, JR., John M. Polo, Carlos E. Ibanez, Stephen M.W. Chang, Douglas J. Jolly, David A. Driver, Barbara A. Belli
  • Patent number: 7572628
    Abstract: The present invention provides compositions and methods for utilizing recombinant alphavirus vectors. Also disclosed are compositions and methods for making and utilizing eukaryotic layered vector initiation systems.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: August 11, 2009
    Assignee: Novartis Vaccines and Diagnostics, Inc.
    Inventors: Thomas W. Dubensky, Jr., John M. Polo, Carlos E. Ibanez, Stephen M. W. Chang, Douglas J. Jolly, David A. Driver, Barbara A. Belli
  • Patent number: 7070994
    Abstract: The invention described herein allows the production of recombinant retroviruses (retroviral vector particles) from producer cells which are safer and of higher titer than normal. In addition, methods are provided for making helper cells which, when a recombinant retrovirus genome is introduced to make a producer line, produce particles that are targeted toward particular cell types. Methods are also provided for making recombinant retrovirus systems adapted to infect a particular cell type, such as a tumor, by binding the retrovirus or recombinant retrovirus in the particular cell type. Methods are also provided for producing recombinant retroviruses which integrate in a specific small number of places in the host genome, and for producing recombinant retroviruses from transgenic animals.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: July 4, 2006
    Assignee: Oxford Biomedica (UK) Ltd.
    Inventors: Jack R. Barber, Douglas J. Jolly, James G. Respess, Stephen M. W. Chang
  • Publication number: 20040029278
    Abstract: The present invention provides compositions and methods for utilizing recombinant alphavirus vectors. Also disclosed are compositions and methods for making and utilizing eukaryotic layered vector initiation systems.
    Type: Application
    Filed: May 17, 2002
    Publication date: February 12, 2004
    Applicant: Chiron Corporation
    Inventors: Thomas W. Dubensky, John M. Polo, Carlos E. Ibanez, Stephen M.W. Chang, Douglas J. Jolly, David A. Driver, Barbara A. Belli
  • Publication number: 20030232035
    Abstract: The present invention provides compositions and methods for utilizing recombinant alphavirus vectors. Also disclosed are compositions and methods for making and utilizing eukaryotic layered vector initiation systems.
    Type: Application
    Filed: January 16, 2003
    Publication date: December 18, 2003
    Inventors: Thomas W. Dubensky, John M. Polo, Carlos E. Ibanez, Stephen M.W. Chang, Douglas J. Jolly, David A. Driver, Barbara A. Belli
  • Publication number: 20030051259
    Abstract: The invention described herein allows the production of recombinant retroviruses (retroviral vector particles) from producer cells which are safer and of higher titre than normal. In addition, methods are provided for making helper cells which, when a recombinant retrovirus genome is introduced to make a producer line, produce particles that are targeted toward particular cell types. Methods are also provided for making recombinant retrovirus systems adapted to infect a particular cell type, such as a tumor, by binding the retrovirus or recombinant retrovirus in the particular cell type. Methods are also provided for producing recombinant retroviruses which integrate in a specific small number of places in the host genome, and for producing recombinant retroviruses from transgenic animals.
    Type: Application
    Filed: July 8, 2002
    Publication date: March 13, 2003
    Inventors: Jack R. Barber, Douglas J. Jolly, James G. Respess, Stephen M.W. Chang
  • Publication number: 20030003567
    Abstract: The invention described herein allows the production of recombinant retroviruses (retroviral vector particles) from producer cells which are safer and of higher titer than normal. In addition, methods are provided for making helper cells which, when a recombinant retrovirus genome is introduced to make a producer line, produce particles that are targeted toward particular cell types. Methods are also provided for making recombinant retrovirus systems adapted to infect a particular cell type, such as a tumor, by binding the retrovirus or recombinant retrovirus in the particular cell type. Methods are also provided for producing recombinant retroviruses which integrate in a specific small number of places in the host genome, and for producing recombinant retroviruses from transgenic animals.
    Type: Application
    Filed: July 24, 2002
    Publication date: January 2, 2003
    Inventors: Jack R. Barber, Douglas J. Jolly, James G. Respess, Stephen M.W. Chang
  • Publication number: 20020141974
    Abstract: The present invention provides methods of treating hepatitis C infections comprising the step of administering a vector construct which directs the expression of at least one immunogenic portion of a hepatitis C antigen, such that an immune response is generated. Also provided are vector constructs which direct the expression of at least one portion of a hepatitis C antigen, as well as recombinant viruses which carry such vector constructs.
    Type: Application
    Filed: July 24, 2001
    Publication date: October 3, 2002
    Inventors: Douglas J. Jolly, Stephen M.W. Chang, William T.L. Lee, Kay Townsend, Joanne O'Dea
  • Patent number: 6410316
    Abstract: Retroviral vector particle producing cells are provided, wherein the cell (a) has greater than 5 stably integrated copies of a retroviral vector construct; (b) produces greater than 10 infectious recombinant retroviral vector particles per cell per day; and (c) produces replication incompetent retroviral vector particles.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: June 25, 2002
    Assignee: Chiron Corporation
    Inventors: Philip L. Sheridan, Mordechai Bodner, Nicholas J. DePolo, Sybille Sauter, Stephen M. W. Chang
  • Patent number: 6410326
    Abstract: Recombinant retroviruses carrying a vector construct capable of preventing, inhibiting, stabilizing or reversing infectious, cancerous or auto-immune diseases are disclosed. More specifically, the recombinant retroviruses of the present invention are useful for (a) stimulating a specific immune response to an antigen or a pathogenic antigen; (b) inhibiting a function of a pathogenic agent, such as a virus; and (c) inhibiting the interaction of an agent with a host cell receptor. In addition, eucaryotic cells infected with, and pharmaceutical compositions containing such a recombinant retrovirus are disclosed. Various methods for producing recombinant retroviruses having unique characteristics, and methods for producing transgenic packaging animals or insects are also disclosed.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 25, 2002
    Assignee: Chiron Corporation
    Inventors: Harry E. Gruber, Douglas J. Jolly, James G. Respess, Paul K. Laikind, Jack R. Barber, Daniel C. St. Louis, Sunil D. Chada, Stephen M. W. Chang, John F. Warner
  • Patent number: 6297048
    Abstract: The present invention provides methods of treating hepatitis C infections comprising the step of administering a vector construct which directs the expression of at least one immunogenic portion of a hepatitis C antigen, such that an immune response is generated. Also provided are vector constructs which direct the expression of at least one portion of a hepatitis C antigen, as well as recombinant viruses which carry such vector constructs.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 2, 2001
    Assignee: Chiron Corporation
    Inventors: Douglas J. Jolly, Stephen M. W. Chang, William T. L. Lee, Kay Townsend, Joanne O'Dea
  • Patent number: 5856185
    Abstract: Recombinant retroviruses carrying a vector construct capable of preventing, inhibiting, stabilizing or reversing infectious, cancerous or auto-immune diseases are disclosed. More specifically, the recombinant retroviruses of the present invention are useful for (a) stimulating a specific immune response to an antigen or a pathogenic antigen; (b) inhibiting a function of a pathogenic agent, such as a virus; and (c) inhibiting the interaction of an agent with a host cell receptor. In addition, eucaryotic cells infected with, and pharmaceutical compositions containing such a recombinant retrovirus are disclosed. Various methods for producing recombinant retroviruses having unique characteristics, and methods for producing transgenic packaging animals or insects are also disclosed.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 5, 1999
    Assignee: Chiron Corporation
    Inventors: Harry E. Gruber, Douglas J. Jolly, James G. Respess, Paul K. Laikind, Jack R. Barber, Daniel C. St. Louis, Sunil D. Chada, Stephen M. W. Chang, John F. Warner
  • Patent number: 5843723
    Abstract: The present invention provides compositions and method,, for utilizing recombinant alphavirus vectors.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: December 1, 1998
    Assignee: Chiron Corporation
    Inventors: Thomas W. Dubensky, Jr., John M. Polo, Carlos E. Ibanez, Stephen M. W. Chang, Douglas J. Jolly, David A. Driver, Barbara A. Belli
  • Patent number: 5789245
    Abstract: The present invention provides compositions and methods for utilizing recombinant alphavirus vectors. Also disclosed are compositions and methods for making and utilizing eukaryotic layered vector initiation systems.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: August 4, 1998
    Assignee: Chiron Corporation
    Inventors: Thomas W. Dubensky, Jr., John M. Polo, Carlos E. Ibanez, Stephen M. W. Chang, Douglas J. Jolly, David A. Driver
  • Patent number: 5716832
    Abstract: The invention described herein allows the production of recombinant retroviruses (retroviral vector particles) from producer cells which are safer and of higher titre than normal. In addition, methods are provided for making helper cells which, when a recombinant retrovirus genome is introduced to make a producer line, produce particles that are targeted toward particular cell types. Methods are also provided for making recombinant retrovirus systems adapted to infect a particular cell type, such as a tumor, by binding the retrovirus or recombinant retrovirus in the particular cell type. Methods are also provided for producing recombinant retroviruses which integrate in a specific small number of places in the host genome, and for producing recombinant retroviruses from transgenic animals.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: February 10, 1998
    Assignee: Chiron Viagene, Inc.
    Inventors: Jack R. Barber, Douglas J. Jolly, James G. Respess, Stephen M. W. Chang
  • Patent number: 5591624
    Abstract: The invention described herein allows the production of recombinant retroviruses (retroviral vector particles) from producer cells which are safer and of higher titer than normal. In addition, methods are provided for making helper cells which, when a recombinant retrovirus genome is introduced to make a producer line, produce particles that are targeted toward particular cell types. Methods are also provided for making recombinant retrovirus systems adapted to infect a particular cell type, such as a tumor, by binding the retrovirus or recombinant retrovirus in the particular cell type. Methods are also provided for producing recombinant retroviruses which integrate in a specific small number of places in the host genome, and for producing recombinant retroviruses from transgenic animals.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: January 7, 1997
    Assignee: Chiron Viagene, Inc.
    Inventors: Jack R. Barber, Douglas J. Jolly, James G. Respess, Stephen M. W. Chang