Patents by Inventor Boopathy Ramakrishnan

Boopathy Ramakrishnan 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: 20170145086
    Abstract: Antibody molecules that specifically bind to APRIL are disclosed. The antibody molecules can be used to treat, prevent, and/or diagnose disorders, such as IgA nephropathy.
    Type: Application
    Filed: November 23, 2016
    Publication date: May 25, 2017
    Inventors: James R. Myette, Zachary Holmes Shriver, Karthik Viswanathan, Andrew M. Wollacott, Hedy Adari-Hall, Boopathy Ramakrishnan, Gregory Babcock
  • Publication number: 20170129942
    Abstract: Antibody molecule-drug conjugates (ADCs) that specifically bind to lipopolysaccharides (LPS) are disclosed. The antibody molecule-drug conjugates can be used to treat, prevent, and/or diagnose bacterial infections and related disorders.
    Type: Application
    Filed: November 10, 2016
    Publication date: May 11, 2017
    Inventors: Obadiah Joseph Plante, James C. Delaney, Karthik Viswanathan, Boopathy Ramakrishnan, Zachary Holmes Shriver, Andrew M. Wollacott
  • Publication number: 20160130359
    Abstract: The identification of Her2-specific monoclonal antibody m860 is described. The m860 antibody was identified from a human naïve phage display Fab library by panning against the extracellular domain of human Her2. M860 binds to cell surface-associated Her2 with an affinity comparable to that of trastuzumab (Herceptin®), but binds to a different epitope. Using site-specific glycan engineering, m860 was conjugated to the small molecule drug auristatin F. The antibody-drug conjugate was stable, bound cell-surface expressed Her2 and exhibited potent cell killing of Her2-positive cancer cells, including trastuzumab-resistant breast cancer cells.
    Type: Application
    Filed: June 9, 2014
    Publication date: May 12, 2016
    Applicant: The United States of America, as represented by The Secretary, Dep of Health and Human Services
    Inventors: Dimiter S. Dimitrov, Zhongyu Zhu, Pradman K. Qasba, Boopathy Ramakrishnan
  • Patent number: 9222080
    Abstract: The invention generally features compositions and methods based on the structure-based design of alpha 1-3 N-Acetylgalactosaminyltransferase (alpha 3 GalNAc-T) enzymes from alpha 1-3galactosyltransferase (a3Gal-T) that can transfer 2?-modified galactose from the corresponding UDP-derivatives due to substitutions that broaden the alpha 3Gal-T donor specificity and make the enzyme a3 GalNAc-T.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: December 29, 2015
    Assignee: The United States of America, as represented by the Secretary, Department of Health & Human Services
    Inventors: Pradman K. Qasba, Boopathy Ramakrishnan, Elizabeth Boeggeman, Marta Pasek
  • Publication number: 20150018522
    Abstract: Disclosed are mutants of galactosyltransferases that can catalyze formation of oligosaccharides in the presence of magnesium; mutants of galactosyltransferases having altered donor and acceptor specificity which can catalyze formation of oligosaccharides in the presence of magnesium; methods and compositions that can be used to synthesize oligosaccharides; methods for increasing the immunogenicity of an antigen; and methods to stabilize platelets.
    Type: Application
    Filed: March 10, 2014
    Publication date: January 15, 2015
    Applicant: The United States of America, as represented by the Secretary, Department of Health & Human Servic
    Inventors: Pradman K. Qasba, Elizabeth Boeggeman, Boopathy Ramakrishnan
  • Publication number: 20140178985
    Abstract: The invention relates generally to beta (1,4)-galactosyltransferase I mutants having altered donor and acceptor specificities, and methods of use thereof. In addition, the invention relates to methods for synthesizing oligosaccharides using the beta (1,4)-galactosyltransferase I mutants and to using the beta (1,4)-galactosyltransferase I mutants to conjugate agents, such as therapeutic agents or diagnostic agents, to acceptor molecules.
    Type: Application
    Filed: July 16, 2013
    Publication date: June 26, 2014
    Inventors: Pradman K. Qasba, Boopathy Ramakrishnan, Elizabeth Boeggeman
  • Patent number: 8703459
    Abstract: Disclosed are mutants of galactosyltransferases that can catalyze formation of oligosaccharides in the presence of magnesium; mutants of galactosyltransferases having altered donor and acceptor specificity which can catalyze formation of oligosaccharides in the presence of magnesium; methods and compositions that can be used to synthesize oligosaccharides; methods for increasing the immunogenicity of an antigen; and methods to stabilize platelets.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: April 22, 2014
    Assignee: The United States of America, as represented by the Secretary, Department of Health & Human Services
    Inventors: Pradman Qasba, Elizabeth Boeggeman, Boopathy Ramakrishnan
  • Publication number: 20130243690
    Abstract: The invention generally features compositions and methods based on the structure-based design of alpha 1-3 N-Acetylgalactosaminyltransferase (alpha 3 GalNAc-T) enzymes from alpha 1-3galactosyltransferase (a3Gal-T) that can transfer 2?-modified galactose from the corresponding UDP-derivatives due to substitutions that broaden the alpha 3Gal-T donor specificity and make the enzyme a3 GalNAc-T.
    Type: Application
    Filed: April 11, 2013
    Publication date: September 19, 2013
    Applicant: Government of the United Sates of America, as represented by the Secretary Department of Health
    Inventors: Pradman K. Qasba, Boopathy Ramakrishnan, Elizabeth Boeggeman, Marta Pasek
  • Patent number: 8512991
    Abstract: The invention relates generally to beta (1,4)-galactosyltransferase I mutants having altered donor and acceptor specificities, and methods of use thereof. In addition, the invention relates to methods for synthesizing oligosaccharides using the beta (1,4)-galactosyltransferase I mutants and to using the beta (1,4)-galactosyltransferase I mutants to conjugate agents, such as therapeutic agents or diagnostic agents, to acceptor molecules.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: August 20, 2013
    Assignee: The United States of America, as represented by the Secretary, Department of Health and Human Services
    Inventors: Pradman K. Qasba, Boopathy Ramakrishnan, Elizabeth Boeggeman
  • Patent number: 8425901
    Abstract: The invention generally features compositions and methods based on the structure-based design of alpha 1-3 N-Acetylgalactosaminyltransferase (alpha 3 GaINAc-T) enzymes from alpha 1-3 galactosyltransferase (a3Gal-T) that can transfer 2?-modified galactose from the corresponding UDP-derivatives due to substitutions that broaden the alpha 3Gal-T donor specificity and make the enzyme a3 GaINAc-T.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: April 23, 2013
    Assignee: The United States of America, as represented by the Secretary, Department of Health and Human Services
    Inventors: Pradman K. Qasba, Boopathy Ramakrishnan, Elizabeth Boeggeman, Marta Pasek
  • Publication number: 20110217235
    Abstract: The invention generally features compositions and methods based on the structure-based design of alpha 1-3 N-Acetylgalactosaminyltransferase (alpha 3 GaINAc-T) enzymes from alpha 1-3 galactosyltransferase (a3Gal-T) that can transfer 2?-modified galactose from the corresponding UDP-derivatives due to substitutions that broaden the alpha 3Gal-T donor specificity and make the enzyme a3 GaINAc-T.
    Type: Application
    Filed: August 22, 2007
    Publication date: September 8, 2011
    Applicant: Health and Human Services
    Inventors: Pradman K. Qasba, Boopathy Ramakrishnan, Elizabeth Boeggeman, Marta Pasek
  • Publication number: 20110064663
    Abstract: The invention relates generally to beta (1,4)-galactosyltransferase I mutants having altered donor and acceptor specificities, and methods of use thereof. In addition, the invention relates to methods for synthesizing oligosaccharides using the beta (1,4)-galactosyltransferase I mutants and to using the beta (1,4)-galactosyltransferase I mutants to conjugate agents, such as therapeutic agents or diagnostic agents, to acceptor molecules.
    Type: Application
    Filed: August 22, 2007
    Publication date: March 17, 2011
    Applicants: SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICES
    Inventors: Pradman K. Qasba, Boopathy Ramakrishnan, Elizabeth Boeggeman
  • Publication number: 20090233345
    Abstract: Disclosed are methods and compositions that can be used to synthesize oligosaccharides; mutants of galactosyltransferases having altered donor and acceptor specificity; methods for increasing the immunogenicity of an antigen; and polypeptide stem regions that can be used to promote in vitro folding of polypeptides, such as the catalytic domain from a galactosyltransferase.
    Type: Application
    Filed: January 13, 2009
    Publication date: September 17, 2009
    Applicant: Govt. of the US, as represented by the secretary, Dept. of Health and Human Services
    Inventors: Pradman Qasba, Boopathy Ramakrishnan
  • Patent number: 7482133
    Abstract: Disclosed are methods and compositions that can be used to synthesize oligosaccharides; mutants of galactosyltransferases having altered donor and acceptor specificity; methods for increasing the immunogenicity of an antigen; and polypeptide stem regions that can be used to promote in vitro folding of polypeptides, such as the catalytic domain from a galactosyltransferase.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: January 27, 2009
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Pradman Qasba, Boopathy Ramakrishnan
  • Publication number: 20080199905
    Abstract: Disclosed are mutants of galactosyltransferases that can catalyze formation of oligosaccharides in the presence of magnesium; mutants of galactosyltransferases having altered donor and acceptor specificity which can catalyze formation of oligosaccharides in the presence of magnesium; methods and compositions that can be used to synthesize oligosaccharides; methods for increasing the immunogenicity of an antigen; and methods to stabilize platelets.
    Type: Application
    Filed: December 6, 2004
    Publication date: August 21, 2008
    Applicant: Goverment of the US, as represented by the Secretary, Department of Health and Human Services
    Inventors: Pradman Qasba, Elizabeth Boeggeman, Boopathy Ramakrishnan
  • Publication number: 20070258986
    Abstract: In accordance with the present invention, compounds, compositions and methods are provided that allow for the administration of a bioactive agent to an organism, including a human or an animal. The present invention can be used to treat or prevent a disease and/or disorder with a bioactive agent, or can be used to safely vaccinate a human or animal against a bioactive agent. The invention can also be used as a method for the delivery of bioactive agents for the treatment or prevention of a disease and/or a disorder, particularly targeted delivery of bioactive agents through the administration of glycoconjugates containing a bioactive agent bound to a targeting compound through a modified saccharide residue.
    Type: Application
    Filed: November 18, 2004
    Publication date: November 8, 2007
    Applicants: Govt of the US, as respresented by the secretary, Department of Health and Human Services
    Inventors: Pradman Qasba, Boopathy Ramakrishnan
  • Publication number: 20060084162
    Abstract: Disclosed are methods and compositions that can be used to synthesize oligosaccharides; mutants of galactosyltransferases having altered donor and acceptor specificity; methods for increasing the immunogenicity of an antigen; and polypeptide stem regions that can be used to promote in vitro folding of polypeptides, such as the catalytic domain from a galactosyltransferase.
    Type: Application
    Filed: July 8, 2005
    Publication date: April 20, 2006
    Inventors: Pradman Qasba, Boopathy Ramakrishnan