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).
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Patent number: 7977091Abstract: 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: GrantFiled: August 10, 2009Date of Patent: July 12, 2011Assignee: 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
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Publication number: 20100173412Abstract: The present disclosure provides compositions and methods for utilizing recombinant alphavirus vectors.Type: ApplicationFiled: August 10, 2009Publication date: July 8, 2010Inventors: Thomas W. Dubensky, JR., John M. Polo, Carlos E. Ibanez, Stephen M.W. Chang, Douglas J. Jolly, David A. Driver, Barbara A. Belli
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Patent number: 7572628Abstract: 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: GrantFiled: January 16, 2003Date of Patent: August 11, 2009Assignee: 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
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Patent number: 7070994Abstract: 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: GrantFiled: July 24, 2002Date of Patent: July 4, 2006Assignee: Oxford Biomedica (UK) Ltd.Inventors: Jack R. Barber, Douglas J. Jolly, James G. Respess, Stephen M. W. Chang
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Publication number: 20040029278Abstract: 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: ApplicationFiled: May 17, 2002Publication date: February 12, 2004Applicant: Chiron CorporationInventors: Thomas W. Dubensky, John M. Polo, Carlos E. Ibanez, Stephen M.W. Chang, Douglas J. Jolly, David A. Driver, Barbara A. Belli
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Publication number: 20030232035Abstract: 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: ApplicationFiled: January 16, 2003Publication date: December 18, 2003Inventors: Thomas W. Dubensky, John M. Polo, Carlos E. Ibanez, Stephen M.W. Chang, Douglas J. Jolly, David A. Driver, Barbara A. Belli
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Publication number: 20030051259Abstract: 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: ApplicationFiled: July 8, 2002Publication date: March 13, 2003Inventors: Jack R. Barber, Douglas J. Jolly, James G. Respess, Stephen M.W. Chang
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Publication number: 20030003567Abstract: 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: ApplicationFiled: July 24, 2002Publication date: January 2, 2003Inventors: Jack R. Barber, Douglas J. Jolly, James G. Respess, Stephen M.W. Chang
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Publication number: 20020141974Abstract: 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: ApplicationFiled: July 24, 2001Publication date: October 3, 2002Inventors: Douglas J. Jolly, Stephen M.W. Chang, William T.L. Lee, Kay Townsend, Joanne O'Dea
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Patent number: 6410316Abstract: 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: GrantFiled: March 15, 2000Date of Patent: June 25, 2002Assignee: Chiron CorporationInventors: Philip L. Sheridan, Mordechai Bodner, Nicholas J. DePolo, Sybille Sauter, Stephen M. W. Chang
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Patent number: 6410326Abstract: 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: GrantFiled: June 7, 1995Date of Patent: June 25, 2002Assignee: Chiron CorporationInventors: 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
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Patent number: 6297048Abstract: 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: GrantFiled: June 7, 1995Date of Patent: October 2, 2001Assignee: Chiron CorporationInventors: Douglas J. Jolly, Stephen M. W. Chang, William T. L. Lee, Kay Townsend, Joanne O'Dea
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Patent number: 5856185Abstract: 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: GrantFiled: June 7, 1995Date of Patent: January 5, 1999Assignee: Chiron CorporationInventors: 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
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Patent number: 5843723Abstract: The present invention provides compositions and method,, for utilizing recombinant alphavirus vectors.Type: GrantFiled: October 30, 1996Date of Patent: December 1, 1998Assignee: Chiron CorporationInventors: Thomas W. Dubensky, Jr., John M. Polo, Carlos E. Ibanez, Stephen M. W. Chang, Douglas J. Jolly, David A. Driver, Barbara A. Belli
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Patent number: 5789245Abstract: 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: GrantFiled: October 30, 1996Date of Patent: August 4, 1998Assignee: Chiron CorporationInventors: Thomas W. Dubensky, Jr., John M. Polo, Carlos E. Ibanez, Stephen M. W. Chang, Douglas J. Jolly, David A. Driver
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Patent number: 5716832Abstract: 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: GrantFiled: June 5, 1995Date of Patent: February 10, 1998Assignee: Chiron Viagene, Inc.Inventors: Jack R. Barber, Douglas J. Jolly, James G. Respess, Stephen M. W. Chang
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Patent number: 5591624Abstract: 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: GrantFiled: November 23, 1993Date of Patent: January 7, 1997Assignee: Chiron Viagene, Inc.Inventors: Jack R. Barber, Douglas J. Jolly, James G. Respess, Stephen M. W. Chang