Patents by Inventor Stephen H. Ip
Stephen H. Ip 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: 6316604Abstract: The present invention relates to the C3b/C4b receptor (CR1) gene and its encoded protein. The invention also relates to CR1 nucleic acid sequences and fragments thereof comprising 70 nucleotides and their encoded peptides or proteins comprising 24 amino acids. The invention further provides for the expression of the CR1 protein and fragments thereof. The genes and proteins of the invention have uses in diagnosis and therapy of disorders involving complement activity, and various immune system or inflammatory disorders. In specific embodiments of the present invention detailed in the examples sections infra, the cloning, nucleotide sequence, and deduced amino acid sequence of a full-length CR1 cDNA and fragments thereof are described. The expression of the CR1 protein and fragments thereof is also described. Also described is the expression of a secreted CR1 molecule lacking a transmembrane region.Type: GrantFiled: June 5, 1995Date of Patent: November 13, 2001Assignee: Avant Immunotherapeutics, Inc.Inventors: Douglas T. Fearon, Lloyd B. Klickstein, Winnie W. Wong, Gerald R. Carson, Michael F. Concino, Stephen H. Ip, Savvas C. Makrides, Henry C. Marsh, Jr.
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Patent number: 6313263Abstract: The present invention provides purified polypeptides which comprise at least a portion of a &dgr; T cell receptor polypeptide, a &ggr; T cell receptor polypeptide, a &ggr;, &dgr; T cell receptor complex or a &ggr;, &ggr; T cell receptor complex. Substances capable of forming complexes with these polypeptides are also provided. Additionally, methods for detecting T cells which have within them or on their surfaces a polypeptide of the present invention are provided. Moreover, methods for diagnosing immune system abnormalities are provided which comprise measuring in a sample from a subject the number of T cells which have within them or on their surfaces a polypeptide of the present invention.Type: GrantFiled: February 10, 1997Date of Patent: November 6, 2001Assignees: Astra AB, President and Fellows of Harvard College, Dana-Farber Cancer InstituteInventors: Michael B. Brenner, Jack L. Strominger, Johnathan Seidman, Stephen H. Ip, Michael S. Krangel
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Patent number: 6171799Abstract: The present invention relates to monoclonal antibodies which recognize defined regions of the T-cell receptor (TCR). In a specific embodiment, the invention provides monoclonal antibodies which are reactive with a constant region of the alpha chain of the TCR. In particular embodiments, the invention relates to two monoclonal antibodies, termed &agr;F1 and &agr;F2, which react with two different epitopes on the framework region of the &agr; monomer of the TCR molecule. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the beta chain of the TCR. In particular, the invention provides two monoclonal antibodies, termed W112 and 2D1, which react with &bgr; chain variable regions V&bgr;5.3 and V&bgr;8.1, respectively. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the delta chain of the TCR. In particular, the invention provides monoclonal antibody &dgr;TCS1, isotype IgG2a.Type: GrantFiled: May 25, 1995Date of Patent: January 9, 2001Assignee: Astra ABInventors: Robert V. Skibbens, Larry D. Henry, Charles W. Rittershaus, Wei-Tao Tian, Stephen H. Ip, Patrick C. Kung, Mary Ellen Snider, Jone-Long Ko, Nancy L. Wood
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Patent number: 6048526Abstract: The present invention relates to monoclonal antibodies which recognize defined regions of the T-cell receptor (TCR). In a specific embodiment, the invention provides monoclonal antibodies which are reactive with a constant region of the alpha chain of the TCR. In particular embodiments, the invention relates to two monoclonal antibodies, termed .alpha.F1 and .alpha.F2, which react with two different epitopes on the framework region of the .alpha. monomer of the TCR molecule. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the beta chain of the TCR. In particular, the invention provides two monoclonal antibodies, termed W112 and 2D1, which react with .beta. chain variable regions V.beta.5.3 and V.beta.8.1, respectively. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the delta chain of the TCR. In particular, the invention provides monoclonal antibody .delta.Type: GrantFiled: June 25, 1993Date of Patent: April 11, 2000Assignee: Astra ABInventors: Robert V. Skibbens, Larry D. Henry, Charles W. Rittershaus, Wei-Tao Tian, Stephen H. Ip, Patrick C. Kung, Mary Ellen Snider, Jone-Long Ko, Nancy L. Wood
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Patent number: 5980892Abstract: The present invention relates to monoclonal antibodies which recognize defined regions of the T-cell receptor (TCR). In a specific embodiment, the invention provides monoclonal antibodies which are reactive with a constant region of the alpha chain of the TCR. In particular embodiments, the invention relates to two monoclonal antibodies, termed .alpha.F1 and .alpha.F2, which react with two different epitopes on the framework region of the .alpha. monomer of the TCR molecule. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the beta chain of the TCR. In particular, the invention provides two monoclonal antibodies, termed W112 and 2D1, which react with .beta. chain variable regions V.beta.5.3 and V.beta.8.1, respectively. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the delta chain of the TCR. In particular, the invention provides monoclonal antibody .delta.Type: GrantFiled: May 25, 1995Date of Patent: November 9, 1999Assignee: Astra ABInventors: Robert V. Skibbens, Larry D. Henry, Charles W. Rittershaus, Wei-Tao Tian, Stephen H. Ip, Patrick C. Kung, Mary Ellen Snider, Jone-Long Ko, Nancy L. Wood
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Patent number: 5981481Abstract: The present invention relates to the C3b/C4b receptor (CR1) gene and its encoded protein. The invention further provides for the expression of the CR1 protein and fragments thereof. The genes and proteins of the invention have uses in diagnosis and therapy of disorders involving complement activity, and various immune system or inflammatory disorders. In specific embodiments of the present invention detailed in the examples sections infra, the cloning, nucleotide sequence, and deduced amino acid sequence of a full-length CR1 cDNA and fragments thereof are described. The expression of the CR1 protein and fragments thereof is also described. Also described is the expression of a secreted CR1 molecule lacking a transmembrane region. The secreted CR1 molecule is shown to be useful in reducing damage caused by inflammation and in reducing myocardial infarct size and preventing reperfusion injury.Type: GrantFiled: June 6, 1995Date of Patent: November 9, 1999Assignees: The Johns Hopkins University, The Brigham & Women's Hospital, Avant Immunotherapeutics, Inc.Inventors: Douglas T. Fearon, Lloyd B. Klickstein, Winnie W. Wong, Gerald R. Carson, Michael F. Concino, Stephen H. Ip, Savvas C. Makrides, Henry C. Marsh, Jr.
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Patent number: 5976533Abstract: The present invention relates to monoclonal antibodies which recognize defined regions of the T-cell receptor (TCR). In a specific embodiment, the invention provides monoclonal antibodies which are reactive with a constant region of the alpha chain of the TCR. In particular embodiments, the invention relates to two monoclonal antibodies, termed .alpha.F1 and .alpha.F2, which react with two different epitopes on the framework region of the .alpha. monomer of the TCR molecule. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the beta chain of the TCR. In particular, the invention provides two monoclonal antibodies, termed W112 and 2D1, which react with .beta. chain variable regions V.beta.5.3 and V.beta.8.1, respectively. In another specific embodiment, the invention is directed to monoclonal antibodies reactive with a variable region of the delta chain of the TCR. In particular, the invention provides monoclonal antibody .delta.Type: GrantFiled: May 25, 1995Date of Patent: November 2, 1999Assignee: Astra ABInventors: Robert V. Skibbens, Larry D. Henry, Charles W. Rittershaus, Wei-Tao Tian, Stephen H. Ip, Patrick C. Kung, Mary Ellen Snider, Jone-Long Ko, Nancy L. Wood
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Patent number: 5856297Abstract: Human complement receptor type 1 (CR1). Nucleic acid molecules encoding full-length CR1 protein and fragments thereof having complement regulatory activity are described, as well as recombinant CR1 protein and polypeptides, vectors for their expression, and cell lines expressing or bearing DNA molecules encoding such proteins and polypeptides, including a soluble CR1 polypeptide consisting of the extracellular 30 short consensus repeat domains of the mature CR1 protein. The nucleic acids and polypeptides described are useful in diagnosis and treatment of disorders involving complement activity and inflammation. Compositions useful in therapeutic applications are also disclosed.Type: GrantFiled: June 6, 1995Date of Patent: January 5, 1999Assignees: The Johns Hopkins University, Brigham & Women's Hospital, T Cell Sciences, Inc.Inventors: Douglas T. Fearon, Lloyd B. Klickstein, Winnie W. Wong, Gerald R. Carson, Michael F. Concino, Stephen H. Ip, Savvas C. Makrides, Henry C. Marsh, Jr.
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Patent number: 5808109Abstract: The present invention is directed to compounds which suppress immune responses and/or selectively inhibit complement. These compounds contain an aromatic ring and are substituted dihydrobenzofurans, spirobenzofuran-2(3H)-cycloalkanes, and their open chain intermediates. The compounds of the present invention, and the pharmaceutically acceptable salts thereof, interrupt the proteolytic processing of C5 to bioactive components, exhibit immunosuppressive activities, and have therapeutic utility in the amelioration of disease and disorders mediated by complement and/or immune activity.Type: GrantFiled: June 7, 1995Date of Patent: September 15, 1998Assignees: T Cell Sciences, Inc., The University of MississippiInventors: Robert D. Sindelar, Barton J. Bradbury, Teodoro S. Kaufman, Stephen H. Ip, Henry C. Marsh, Jr., Chew Lee
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Patent number: 5601822Abstract: The present invention provides purified polypeptides which comprise at least a portion of a .delta. T cell receptor polypeptide, a .gamma. T cell receptor polypeptide, a .gamma., .delta. T cell receptor complex or a .gamma., .gamma. T cell receptor complex. Substances capable of forming complexes with these polypeptides are also provided.Additionally, methods for detecting T cells which have within them or on their surfaces a polypeptide of the present invention are provided. Moreover, methods for diagnosing immune system abnormalities are provided which comprise measuring in a sample from a subject the number of T cells which have within them or on their surfaces a polypeptide of the present invention.Type: GrantFiled: November 19, 1993Date of Patent: February 11, 1997Assignees: T Cell Sciences, Inc., President and Fellows of Harvard College, Dana Farber Cancer InstituteInventors: Michael B. Brenner, Jack L. Strominger, Johnathan Seidman, Stephen H. Ip, Michael S. Krangel
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Patent number: 5506247Abstract: The present invention is directed to compounds which suppress immune responses and/or selectively inhibit complement. These compounds contain an aromatic ring and are substituted dihydrobenzofurans, spirobenzofuran-2(3H)-cycloalkanes, and their open chain intermediates. The compounds of the present invention, and the pharmaceutically acceptable salts thereof, interrupt the proteolytic processing of C5 to bioactive components, exhibit immunosuppressive activities, and have therapeutic utility in the amelioration of disease and disorders mediated by complement and/or immune activity.Type: GrantFiled: January 21, 1994Date of Patent: April 9, 1996Assignees: T Cell Sciences, Inc., The University of MississippiInventors: Robert D. Sindelar, Barton J. Bradbury, Teodoro S. Kaufman, Stephen H. Ip, Henry C. Marsh, Jr., Chew Lee
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Patent number: 5472939Abstract: The present invention relates to the C3b/C4b receptor (CR1) gene and its encoded protein. The invention also relates to CR1 nucleic acid sequences and fragments thereof comprising 70 nucleotides and their encoded peptides or proteins comprising 24 amino acids. The invention further provides for the expression of the CR1 protein and fragments thereof. The genes and proteins of the invention have uses in diagnosis and therapy of disorders involving complement activity, and various immune system or inflammatory disorders. In specific embodiments of the present invention detailed in the examples sections infra, the cloning, nucleotide sequence, and deduced amino acid sequence of a full-length CR1 cDNA and fragments thereof are described. The expression of the CR1 protein and fragments thereof is also described. Also described is the expression of a secreted CR1 molecule lacking a transmembrane region.Type: GrantFiled: October 19, 1993Date of Patent: December 5, 1995Assignees: The Johns Hopkins University, The Brigham and Women's Hospital, T Cell Sciences, Inc.Inventors: Douglas T. Fearon, Lloyd B. Klickstein, Winnie W. Wong, Gerald R. Carson, Michael F. Concino, Stephen H. Ip, Savvas C. Makrides, Henry C. Marsh, Jr.
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Patent number: 5436319Abstract: Cell-free or released T cell antigen receptors, immunoassays which allow the detection of the released T cell antigen receptor in cell culture supernatants, cell lysates, and biological fluids, as well as diagnostic and therapeutic compositions and methods for monitoring and treating certain diseases or disorders which elicit or involve a T cell response are described. The released T cell antigen receptors described herein differ from the cell membrane bound antigen receptors and appear to exist in a variety of forms, some of which may be complexed with other T cell determinants such as the T3 antigen. Despite the size heterogeneity of the released T cell antigen receptors or receptor/complexes, these may be reliably identified using anti-receptor antibodies, including, but not limited to, anti-major framework, anti-minor frarmework and anti-clonotypic antibodies which define particular epitopes of the released T cell receptor or receptor/complex.Type: GrantFiled: September 26, 1994Date of Patent: July 25, 1995Assignee: T Cell Sciences, Inc.Inventors: Patrick C. Kung, Stephen H. Ip, Michael C. Brown
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Patent number: 5401767Abstract: The present invention is directed to compounds which suppress immune responses and/or selectively inhibit complement. These compounds contain an aromatic ring and are substituted dihydrobenzofurans, spirobenzofuran-2(3H)-cycloalkanes, and their open chain intermediates. The compounds of the present invention, and the pharmaceutically acceptable salts thereof, interrupt the proteolytic processing of C5 to bioactive components, exhibit immunosuppressive activities, and have therapeutic utility in the amelioration of disease and disorders mediated by complement and/or immune activity.Type: GrantFiled: December 21, 1992Date of Patent: March 28, 1995Assignees: T Cell Sciences, Inc., The University of MississippiInventors: Robert D. Sindelar, Barton J. Bradbury, Teodoro Kaufman, Stephen H. Ip, Henry C. Marsh, Jr.
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Patent number: 5366986Abstract: The present invention is directed to compounds which suppress immune responses and/or selectively inhibit complement. These compounds contain an aromatic ring and are substituted dihydrobenzofurans, spirobenzofuran-2(3H)-cycloalkanes, and their open chain intermediates. The compounds of the present invention, and the phamaceutically acceptable salts thereof, interrupt the proteolytic processing of C5 to bioactive components, exhibit immunosuppressive activites, and have therapeutic utility in the amelioration of disease and disorders mediated by complement and/or immune activity.Type: GrantFiled: December 6, 1990Date of Patent: November 22, 1994Assignees: T Cell Sciences, Inc., The University of MississippiInventors: Robert D. Sindelar, Barton J. Bradbury, Teodoro S. Kaufman, Stephen H. Ip, Henry C. Marsh, Jr., Chew Lee
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Patent number: 5340921Abstract: The present invention provides purified polypeptides which comprise at least a portion of a .delta.T cell receptor polypeptide, a .gamma.T cell receptor polypeptide, a .gamma., .delta.T cell receptor complex or a .gamma., .gamma.T cell receptor complex. Substances capable of forming complexes with these polypeptides are also provided.Additionally, methods for detecting T cells which have within them or on their surfaces a polypeptide of the present invention are provided. Moreover, methods for diagnosing immune system abnormalities are provided which comprise measuring in a sample from a subject the number of T cells which have within them or on their surfaces a polypeptide of the present invention.Type: GrantFiled: February 19, 1987Date of Patent: August 23, 1994Assignees: T Cell Sciences, Inc., The Dana-Farber Cancer Institute, President & Fellows of Harvard CollegeInventors: Michael B. Brenner, Jack L. Strominger, Johnathan Seidman, Stephen H. Ip, Michael S. Krangel
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Patent number: 5292636Abstract: The present invention is directed to the measurement of soluble T cell growth factor receptors, soluble T cell differentiation antigens, or related soluble molecules or fragments thereof, and the use of such measurements in the diagnosis, staging, and therapy of diseases and disorders. Specific embodiments involve the diagnosis and monitoring of therapy using absolute values of such soluble molecules. Further embodiments involve detecting a change in the levels of such soluble molecules, in the diagnosis and therapy of diseases and disorders. In specific embodiments, measurements of interleukin-2 receptor levels can be made to detect lung cancer, or to stage squamous cell lung carcinoma. In other embodiments, detection of increases in both soluble IL2R and creatinine in the body fluid of a transplant patient can be used to differentially diagnose renal allograft rejection from infection.Type: GrantFiled: November 9, 1989Date of Patent: March 8, 1994Assignee: T Cell Diagnostics, Inc.Inventors: Patrick C. Kung, Stephen H. Ip, Michael C. Brown, Linda A. MacKeen
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Patent number: 5286653Abstract: The present invention provides purified polypeptides which comprise at least a portion of a .delta.T cell receptor polypeptide, a .gamma.T cell receptor polypeptide or a .gamma.,.delta. T cell receptor complex. Substances capable of forming complexes with these polypeptides are also provided. Additionally, methods for detecting T cells which have within them or on their surfaces a polypeptide of the present invention are provided. Moreover, methods for diagnosing immune system abnormalities are provided which comprise measuring in a sample from a subject the number of T cells which have within them or on their surfaces a polypeptide of the present invention.Type: GrantFiled: July 3, 1986Date of Patent: February 15, 1994Assignees: T Cell Diagnostics, Inc., Dana Farber Cancer Institute, President and Fellows of Harvard CollegeInventors: Michael B. Brenner, Jack L. Strominger, Jonathan Seidman, Stephen H. Ip, Michael S. Krangel
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Patent number: 5260223Abstract: The present invention provides purified polypeptides which comprise at least a portion of a .delta. T cell receptor polypeptide, a .gamma. T cell receptor polypeptide, a .gamma., .gamma. T cell receptor complex or a .gamma., .delta. T cell receptor complex. Substances capable of forming complexes with these polypeptides are also provided.Additionally, methods for detecting T cells which have within them or on tThis invention was supported by several NIH grants, and the Government has certain rights to the invention.Type: GrantFiled: April 29, 1988Date of Patent: November 9, 1993Assignees: President & Fellows of Harvard College, Dana Farber Cancer Institute & T Cell Diagnostics, Inc.Inventors: Michael B. Brenner, Jack L. Strominger, John G. Seidman, Stephen H. Ip, Michael S. Krangel
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Patent number: 5256642Abstract: The present invention relates to compositions comprising soluble complement receptor 1 (CR1) and a thrombolytic agent. In a specific embodiment, the thrombolytic agent is anisoylated human plasminogen-streptokinase activator complex (ASPAC). The invention further relates to methods for treating thrombotic conditions in humans and animals by administering a composition comprising soluble CR1 and a thrombolytic agent. In particular, the compositions and methods are useful both for reducing reperfusion injury and ameliorating the other effects of myocardial infarction.Type: GrantFiled: September 24, 1990Date of Patent: October 26, 1993Assignees: The Johns Hopkins University, Brigham and Women's Hospital, T Cell Sciences, Inc.Inventors: Douglas T. Fearon, Lloyd B. Klickstein, Winnie W. Wong, Gerald R. Carson, Michael F. Concino, Stephen H. Ip, Savvas Makrides, Henry C. Marsh, Jr.