Patents by Inventor Pallavur V. Sivakumar
Pallavur V. Sivakumar 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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Publication number: 20180258172Abstract: Disclosed is a newly identified B7 family member, zB7H6, which functions as a counter-receptor for the NK cell triggering receptor, NKp30. Methods and compositions for modulating NKp30-mediated NK cell activity based on the interaction of zB7H6 with NKp30, as well as related screening methods, are also disclosed. Further disclosed are anti-zB7H6 antibodies as well as antibody-drug conjugates comprising an anti-zB7H6 antibody conjugated to a therapeutic agent, including methods for using such antibodies and antibody-drug conjugates to exert therapeutic effects against zB7H6-expressing cells.Type: ApplicationFiled: May 24, 2018Publication date: September 13, 2018Inventors: Cameron S. Brandt, Jacob J. Kennedy, Wenfeng Xu, Eugene C. Yi, Brian A. Fox, Zeren Gao, Pallavur V. Sivakumar
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Patent number: 10005837Abstract: Disclosed is a newly identified B7 family member, zB7H6, which functions as a counter-receptor for the NK cell triggering receptor, NKp30. Methods and compositions for modulating NKp30-mediated NK cell activity based on the interaction of zB7H6 with NKp30, as well as related screening methods, are also disclosed. Further disclosed are anti-zB7H6 antibodies as well as antibody-drug conjugates comprising an anti-zB7H6 antibody conjugated to a therapeutic agent, including methods for using such antibodies and antibody-drug conjugates to exert therapeutic effects against zB7H6-expressing cells.Type: GrantFiled: January 21, 2015Date of Patent: June 26, 2018Assignee: Zymogenetics, Inc.Inventors: Cameron S. Brandt, Jacob J. Kennedy, Wenfeng Xu, Eugene C. Yi, Brian A. Fox, Zeren Gao, Pallavur V. Sivakumar
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Patent number: 9708390Abstract: Disclosed are antagonists of PDGF receptor ? (PDGFR?) and VEGF-A, including neutralizing anti-PDGFR? and anti-VEGF-A antibodies, as well as related compositions and methods. Anti-PDGFR? and anti-VEGF-A antibodies disclosed herein include bispecific antibodies capable of binding and neutralizing both PDGFR? and VEGF-A. Also disclosed are methods of treating an neovascular disorder, such as cancer or an neovascular ocular disorder, using a PDGFR? and/or VEGF-A antagonist.Type: GrantFiled: July 11, 2016Date of Patent: July 18, 2017Assignee: ZYMOGENETICS, INC.Inventors: Pallavur V. Sivakumar, Debra G. Gilbertson, Marshall D. Snavely, George R. Mabry, Eugene C. Yi, Yue Yao, Scott R. Presnell
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Publication number: 20170037123Abstract: Monoclonal antibodies are identified that bind the IL-21 protein. These antibodies are used to identify regions of the IL-21 protein to where binding neutralizes IL-21 activity. Hybridomas and methods of producing anti-IL-21 monoclonal antibodies are described. The monoclonal antibodies are useful in treating IL-21-mediated diseases, which may include autoimmune and inflammatory diseases such as pancreatitis, type I diabetes (IDDM), Graves Disease, inflammatory bowel disease (IBD), Crohn's Disease, ulcerative colitis, irritable bowel syndrome, multiple sclerosis, rheumatoid arthritis, diverticulosis, systemic lupus erythematosus, psoriasis, ankylosing spondylitis, scleroderma, systemic sclerosis, psoriatic arthritis, osteoarthritis, atopic dermatitis, vitiligo, graft vs.Type: ApplicationFiled: June 9, 2016Publication date: February 9, 2017Inventors: Pallavur V. SIVAKUMAR, Stephen R. JASPERS
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Publication number: 20160311909Abstract: Disclosed are antagonists of PDGF receptor ? (PDGFR?) and VEGF-A, including neutralizing anti-PDGFR? and anti-VEGF-A antibodies, as well as related compositions and methods. Anti-PDGFR? and anti-VEGF-A antibodies disclosed herein include bispecific antibodies capable of binding and neutralizing both PDGFR? and VEGF-A. Also disclosed are methods of treating an neovascular disorder, such as cancer or an neovascular ocular disorder, using a PDGFR? and/or VEGF-A antagonist.Type: ApplicationFiled: July 11, 2016Publication date: October 27, 2016Inventors: Pallavur V. SIVAKUMAR, Debra G. Gilberson, Marshall D. Snavely, George R. Mabry, Eugene C. Yi, Yue Yao, Scott R. Presnell
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Patent number: 9441034Abstract: Disclosed are antagonists of PDGF receptor ? (PDGFR?) and VEGF-A, including neutralizing anti-PDGFR? and anti-VEGF-A antibodies, as well as related compositions and methods. Anti-PDGFR? and anti-VEGF-A antibodies disclosed herein include bispecific antibodies capable of binding and neutralizing both PDGFR? and VEGF-A. Also disclosed are methods of treating an neovascular disorder, such as cancer or an neovascular ocular disorder, using a PDGFR? and/or VEGF-A antagonist.Type: GrantFiled: March 27, 2009Date of Patent: September 13, 2016Assignee: ZYMOGENETICS, INC.Inventors: Pallavur V. Sivakumar, Debra G. Gilbertson, Marshall D. Snavely, George R. Mabry, Eugene C. Yi, Yue Yao, Scott R. Presnell
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Patent number: 9388241Abstract: Monoclonal antibodies are identified that bind the IL-21 protein. These antibodies are used to identify regions of the IL-21 protein to where binding neutralizes IL-21 activity. Hybridomas and methods of producing anti-IL-21 monoclonal antibodies are described. The monoclonal antibodies are useful in treating IL-21-mediated diseases, which may include autoimmune and inflammatory diseases such as pancreatitis, type I diabetes (IDDM), Graves Disease, inflammatory bowel disease (IBD), Crohn's Disease, ulcerative colitis, irritable bowel syndrome, multiple sclerosis, rheumatoid arthritis, diverticulosis, systemic lupus erythematosus, psoriasis, ankylosing spondylitis, scleroderma, systemic sclerosis, psoriatic arthritis, osteoarthritis, atopic dermatitis, vitiligo, graft vs. host disease (GVHD), cutaneous T cell lymphoma (CTCL), Sjogren's syndrome, glomerulonephritis, IgA nephropathy, transplant rejection, atopic dermatitis, anti-phospholipid syndrome, and asthma, and other autoimmune diseases.Type: GrantFiled: June 8, 2012Date of Patent: July 12, 2016Assignee: ZymoGenetics, Inc.Inventors: Pallavur V. Sivakumar, Stephen R. Jaspers
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Publication number: 20150175702Abstract: Disclosed is a newly identified B7 family member, zB7H6, which functions as a counter-receptor for the NK cell triggering receptor, NKp30. Methods and compositions for modulating NKp30-mediated NK cell activity based on the interaction of zB7H6 with NKp30, as well as related screening methods, are also disclosed. Further disclosed are anti-zB7H6 antibodies as well as antibody-drug conjugates comprising an anti-zB7H6 antibody conjugated to a therapeutic agent, including methods for using such antibodies and antibody-drug conjugates to exert therapeutic effects against zB7H6-expressing cells.Type: ApplicationFiled: January 21, 2015Publication date: June 25, 2015Inventors: Cameron S. BRANDT, Jacob J. Kennedy, Wenfeng Xu, Eugene C. YI, Brian A. Fox, Zeren Gao, Pallavur V. Sivakumar
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Patent number: 8969518Abstract: Disclosed is a newly identified B7 family member, zB7H6, which functions as a counter-receptor for the NK cell triggering receptor, NKp30. Methods and compositions for modulating NKp30-mediated NK cell activity based on the interaction of zB7H6 with NKp30, as well as related screening methods, are also disclosed. Further disclosed are anti-zB7H6 antibodies as well as antibody-drug conjugates comprising an anti-zB7H6 antibody conjugated to a therapeutic agent, including methods for using such antibodies and antibody-drug conjugates to exert therapeutic effects against zB7H6-expressing cells.Type: GrantFiled: November 10, 2010Date of Patent: March 3, 2015Assignee: Zymogenetics, Inc.Inventors: Cameron S. Brandt, Jacob J. Kennedy, Wenfeng Xu, Eugene C. Yi, Brian A. Fox, Zeren Gao, Pallavur V. Sivakumar
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Patent number: 8816053Abstract: IL-28A, IL-28B, IL-29, and certain mutants thereof have been shown to have antiviral activity on a spectrum of viral species. Of particular interest is the antiviral activity demonstrated on viruses that infect liver, such as hepatitis B virus and hepatitis C virus. In addition, IL-28A, IL-28B, IL-29, and mutants thereof do not exhibit some of the antiproliferative activity on hematopoietic cells that is observed with interferon treatment. Without the immunosuppressive effects accompanying interferon treatment, IL-28A, IL-28B, and IL-29 will be useful in treating immunocompromised patients for viral infections.Type: GrantFiled: September 7, 2012Date of Patent: August 26, 2014Assignee: ZymoGenetics, Inc.Inventors: Kevin M. Klucher, Wayne R. Kindsvogel, Pallavur V. Sivakumar, Katherine E. Henderson
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Patent number: 8790643Abstract: Monoclonal antibodies to the IL-21 receptor and multimeric complexes comprising the IL-21 receptor; including monoclonal antibodies to the heterodimeric receptor, IL-21/IL-2R?; have been prepared. The invention also describes a method of producing said antibodies. And, the invention also describes a method of treatment comprising using said antibodies to suppress an immune response.Type: GrantFiled: November 8, 2010Date of Patent: July 29, 2014Assignee: ZymoGenetics, Inc.Inventors: Pallavur V. Sivakumar, Stephen R. Jaspers
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Publication number: 20130315919Abstract: The present invention relates to blocking, inhibiting, reducing, antagonizing or neutralizing the activity of IL-22, IL-20, or both IL-20 and IL-22 polypeptide molecules. IL-20 and IL-22 are cytokines that are involved in inflammatory processes and human disease. IL-22RA (zcytor11) is a common receptor for IL-20 and IL-22. The present invention includes anti-IL-22RA antibodies and binding partners, as well as methods for antagonizing IL-22 or both IL-20 and IL-22 using such antibodies and binding partners.Type: ApplicationFiled: August 6, 2013Publication date: November 28, 2013Applicant: ZYMOGENETICS, INC.Inventors: Wenfeng XU, Wayne R. KINDSVOGEL, Yasmin A. CHANDRASEKHER, Stacey R. DILLON, Joyce M. LEHNER, Anthony W. SIADAK, Pallavur V. SIVAKUMAR, Margaret Dow MOORE
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Publication number: 20130273000Abstract: IL-28A, IL-28B, IL-29, and certain mutants thereof have been shown to have antiviral activity on a spectrum of viral species. Of particular interest is the antiviral activity demonstrated on viruses that infect liver, such as hepatitis B virus and hepatitis C virus. In addition, IL-28A, IL-28B, IL-29, and mutants thereof do not exhibit some of the antiproliferative activity on hematopoietic cells that is observed with interferon treatment. Without the immunosuppressive effects accompanying interferon treatment, IL-28A, IL-28B, and IL-29 will be useful in treating immunocompromised patients for viral infections.Type: ApplicationFiled: September 14, 2012Publication date: October 17, 2013Inventors: Kevin M. Klucher, Pallavur V. Sivakumar, Wayne R. Kindsvogel, Katherine E. Henderson
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Patent number: 8536309Abstract: The present invention relates to blocking, inhibiting, reducing, antagonizing or neutralizing the activity of IL-22, IL-20, or both IL-20 and IL-22 polypeptide molecules. IL-20 and IL-22 are cytokines that are involved in inflammatory processes and human disease. IL-22RA (zcytor11) is a common receptor for IL-20 and IL-22. The present invention includes anti-IL-22RA antibodies and binding partners, as well as methods for antagonizing IL-22 or both IL-20 and IL-22 using such antibodies and binding partners.Type: GrantFiled: January 12, 2012Date of Patent: September 17, 2013Assignee: ZymoGenetics, Inc.Inventors: Wenfeng Xu, Wayne R. Kindsvogel, Yasmin A. Chandrasekher, Stacey R. Dillon, Joyce M. Lehner, Anthony W. Siadak, Pallavur V. Sivakumar, Margaret D. Moore
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Patent number: 8361954Abstract: Methods for treating patients with cancer and autoimmune disorders using IL-28 and IL-29 molecules. The IL-28 and IL-29 molecules include polypeptides that have homology to the human IL-28 or IL-29 polypeptide sequence and proteins fused to a polypeptide with IL-28 and IL-29 functional activity. The molecules can be used as a monotherapy or in combination with other known cancer and/or autoimmune therapeutics.Type: GrantFiled: June 17, 2010Date of Patent: January 29, 2013Assignee: ZymoGenetics, Inc.Inventors: Sean Doyle, Kevin M. Klucher, Pallavur V. Sivakumar, Wayne R. Kindsvogel, Chung Chan
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Publication number: 20130022571Abstract: IL-28A, IL-28B, IL-29, and certain mutants thereof have been shown to have antiviral activity on a spectrum of viral species. Of particular interest is the antiviral activity demonstrated on viruses that infect liver, such as hepatitis B virus and hepatitis C virus. In addition, IL-28A, IL-28B, IL-29, and mutants thereof do not exhibit some of the antiproliferative activity on hematopoietic cells that is observed with interferon treatment. Without the immunosuppressive effects accompanying interferon treatment, IL-28A, IL-28B, and IL-29 will be useful in treating immunocompromised patients for viral infections.Type: ApplicationFiled: September 7, 2012Publication date: January 24, 2013Inventors: Kevin M. Klucher, Wayne R. Kindsvogel, Pallavur V. Sivakumar, Katherine E. Henderson
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Patent number: 8318147Abstract: IL-28A, IL-28B, IL-29, and certain mutants thereof have been shown to have antiviral activity on a spectrum of viral species. Of particular interest is the antiviral activity demonstrated on viruses that infect liver, such as hepatitis B virus and hepatitis C virus. In addition, IL-28A, IL-28B, IL-29, and mutants thereof do not exhibit some of the antiproliferative activity on hematopoietic cells that is observed with interferon treatment. Without the immunosuppressive effects accompanying interferon treatment, IL-28A, IL-28B, and IL-29 will be useful in treating immunocompromised patients for viral infections.Type: GrantFiled: September 6, 2011Date of Patent: November 27, 2012Assignee: ZymoGenetics, Inc.Inventors: Kevin M. Klucher, Pallavur V Sivakumar, Wayne R Kindsvogel, Katherine E Henderson
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Publication number: 20120282250Abstract: Monoclonal antibodies are identified that bind the IL-21 protein. These antibodies are used to identify regions of the IL-21 protein to where binding neutralizes IL-21 activity. Hybridomas and methods of producing anti-IL-21 monoclonal antibodies are described. The monoclonal antibodies are useful in treating IL-21-mediated diseases, which may include autoimmune and inflammatory diseases such as pancreatitis, type I diabetes (IDDM), Graves Disease, inflammatory bowel disease (IBD), Crohn's Disease, ulcerative colitis, irritable bowel syndrome, multiple sclerosis, rheumatoid arthritis, diverticulosis, systemic lupus erythematosus, psoriasis, ankylosing spondylitis, scleroderma, systemic sclerosis, psoriatic arthritis, osteoarthritis, atopic dermatitis, vitiligo, graft vs.Type: ApplicationFiled: June 8, 2012Publication date: November 8, 2012Applicant: ZYMOGENETICS, INC.Inventors: Pallavur V. SIVAKUMAR, Stephen R. JASPERS
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Patent number: 8283448Abstract: IL-28A, IL-28B, IL-29, and certain mutants thereof have been shown to have antiviral activity on a spectrum of viral species. Of particular interest is the antiviral activity demonstrated on viruses that infect liver, such as hepatitis B virus and hepatitis C virus. In addition, IL-28A, IL-28B, IL-29, and mutants thereof do not exhibit some of the antiproliferative activity on hematopoietic cells that is observed with interferon treatment. Without the immunosuppressive effects accompanying interferon treatment, IL-28A, IL-28B, and IL-29 will be useful in treating immunocompromised patients for viral infections.Type: GrantFiled: July 26, 2011Date of Patent: October 9, 2012Assignee: ZymoGenetics, Inc.Inventors: Kevin M. Klucher, Wayne R. Kindsvogel, Pallavur V. Sivakumar, Katherine E Henderson
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Publication number: 20120207761Abstract: The present invention relates to blocking, inhibiting, reducing, antagonizing or neutralizing the activity of IL-22, IL-20, or both IL-20 and IL-22 polypeptide molecules. IL-20 and IL-22 are cytokines that are involved in inflammatory processes and human disease. IL-22RA (zcytor11) is a common receptor for IL-20 and IL-22. The present invention includes anti-IL-22RA antibodies and binding partners, as well as methods for antagonizing IL-22 or both IL-20 and IL-22 using such antibodies and binding partners.Type: ApplicationFiled: March 22, 2012Publication date: August 16, 2012Applicant: ZYMOGENETICS, INC.Inventors: Wenfeng XU, Wayne KINDSVOGEL, Yasmin A. CHANDRASEKHER, Stacey R. DILLON, Joyce M. LEHNER, Anthony W. SIADAK, Pallavur V. SIVAKUMAR, Margaret Dow MOORE