Patents by Inventor Leonardo Borras

Leonardo Borras 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: 20180072802
    Abstract: The present invention relates to soluble and stable anti-VEGF imunobinders comprising CDRs from rabbit monoclonal antibodies. Said antibodies are designed for the diagnosis and/or treatment of VEGF-mediated disorders. The hybridomas, nucleic acids, vectors and host cells for expression of the recombinant antibodies of the invention, methods for isolating them and the use of said antibodies in medicine are also disclosed.
    Type: Application
    Filed: November 16, 2017
    Publication date: March 15, 2018
    Inventors: Leonardo Borras, David Urech, Tea Gunde
  • Patent number: 9908945
    Abstract: The invention provides methods of using sequence based analysis and rational strategies to modify and improve the structural and biophysical properties of single chain antibodies (scFvs), including stability, solubility, and antigen binding affinity. These methods and strategies can be used individually or in combination. The methods of the present invention also include the use of a database comprising scFv sequences from an experimentally screened scFv library of antibodies that have been selected to have superior solubility and stability. The invention also provides methods of using the properties found for these selected antibodies in a general approach for reshaping scFv antibodies to improve stability and solubility properties of a single chain antibody fragment.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: March 6, 2018
    Assignee: Esbatech, An Alcon Biomedical Research Unit LLC
    Inventors: David Urech, Leonardo Borras
  • Patent number: 9873737
    Abstract: The present invention relates to soluble and stable anti-VEGF imunobinders comprising CDRs from rabbit monoclonal antibodies. Said antibodies are designed for the diagnosis and/or treatment of VEGF-mediated disorders. The hybridomas, nucleic acids, vectors and host cells for expression of the recombinant antibodies of the invention, methods for isolating them and the use of said antibodies in medicine are also disclosed.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: January 23, 2018
    Assignee: ESBATech, an Alcon Biomedical Research Unit LLC
    Inventors: Leonardo Borras, David Urech, Tea Gunde
  • Publication number: 20180016350
    Abstract: A method for decreasing the immunogenicity of antibody variable domains is disclosed.
    Type: Application
    Filed: September 21, 2017
    Publication date: January 18, 2018
    Inventors: David Urech, Leonardo Borras
  • Publication number: 20170096482
    Abstract: The invention provides methods of using sequence based analysis and rational strategies to improve the solubility of immunobinders, and in particular of single chain antibodies (scFvs). The invention provides methods of engineering immunobinders, and in particular scFvs, by performing one or more substitutions with hydrophilic residues identified by analysis of a database of selected, stable scFv sequences. The invention also provides immunobinders with optimized solubility prepared according to the engineering methods of the invention.
    Type: Application
    Filed: December 14, 2016
    Publication date: April 6, 2017
    Applicant: ESBATech, an Alcon Biomedical Research Unit LLC
    Inventors: Leonardo Borras, David Urech
  • Patent number: 9556265
    Abstract: The invention provides methods of using sequence based analysis and rational strategies to improve the solubility of immunobinders, and in particular of single chain antibodies (scFvs). The invention provides methods of engineering immunobinders, and in particular scFvs, by performing one or more substitutions with hydrophilic residues identified by analysis of a database of selected, stable scFv sequences. The invention also provides immunobinders with optimized solubility prepared according to the engineering methods of the invention.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: January 31, 2017
    Assignee: ESBATech, an Alcon Biomedical Research Unit LLC
    Inventors: Leonardo Borras, David Urech
  • Publication number: 20160251428
    Abstract: The present invention relates to particularly stable and soluble scFv antibodies and Fab fragments specific for TNF, which comprise specific light chain and heavy chain sequences that are optimized for stability, solubility, in vitro and in vivo binding of TNF, and low immunogenicity. Said antibodies are designed for the diagnosis and/or treatment of TNF-mediated disorders. The nucleic acids, vectors and host cells for expression of the recombinant antibodies of the invention, methods for isolating them and the use of said antibodies in medicine are also disclosed.
    Type: Application
    Filed: May 18, 2016
    Publication date: September 1, 2016
    Inventors: Leonardo Borras, Tea Gunde, David Urech
  • Patent number: 9422366
    Abstract: The present invention relates to particularly stable and soluble scFv antibodies and Fab fragments specific for TNF, which comprise specific light chain and heavy chain sequences that are optimized for stability, solubility, in vitro and in vivo binding of TNF, and low immunogenicity. Said antibodies are designed for the diagnosis and/or treatment of TNF-mediated disorders. The nucleic acids, vectors and host cells for expression of the recombinant antibodies of the invention, methods for isolating them and the use of said antibodies in medicine are also disclosed.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: August 23, 2016
    Assignee: Esbatech, An Alcon Biomedical Research Unit LLC
    Inventors: Leonardo Borras, Tea Gunde, David Urech
  • Publication number: 20150274820
    Abstract: The present invention relates to soluble and stable anti-VEGF imunobinders comprising CDRs from rabbit monoclonal antibodies. Said antibodies are designed for the diagnosis and/or treatment of VEGF-mediated disorders. The hybridomas, nucleic acids, vectors and host cells for expression of the recombinant antibodies of the invention, methods for isolating them and the use of said antibodies in medicine are also disclosed.
    Type: Application
    Filed: June 16, 2015
    Publication date: October 1, 2015
    Inventors: Leonardo Borras, David Urech, Tea Gunde
  • Patent number: 9090684
    Abstract: The present invention relates to soluble and stable anti-VEGF immunobinders comprising CDRs from rabbit monoclonal antibodies. Said antibodies are designed for the diagnosis and/or treatment of VEGF-mediated disorders. The hybridomas, nucleic acids, vectors and host cells for expression of the recombinant antibodies of the invention, methods for isolating them and the use of said antibodies in medicine are also disclosed.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: July 28, 2015
    Inventors: Leonardo Borras, David Urech, Tea Gunde
  • Patent number: 8937162
    Abstract: The present invention relates to an universal antibody acceptor framework and to methods for grafting non-human antibodies, e.g., rabbit antibodies, using a universal antibody acceptor framework. Antibodies generated by the methods of the invention are useful in a variety of diagnostic and therapeutic applications.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: January 20, 2015
    Assignee: Esbatech, An Alcon Biomedical Research Unit, LLC
    Inventors: Leonardo Borras, David Urech
  • Publication number: 20140193400
    Abstract: The present invention relates to particularly stable and soluble scFv antibodies and Fab fragments specific for TNF, which comprise specific light chain and heavy chain sequences that are optimized for stability, solubility, in vitro and in vivo binding of TNF, and low immunogenicity. Said antibodies are designed for the diagnosis and/or treatment of TNF-mediated disorders. The nucleic acids, vectors and host cells for expression of the recombinant antibodies of the invention, methods for isolating them and the use of said antibodies in medicine are also disclosed.
    Type: Application
    Filed: December 19, 2013
    Publication date: July 10, 2014
    Applicant: ESBA Tech, an Alcon Biomedical Research Unit LLC
    Inventors: Leonardo Borras, Tea Gunde, David Urech
  • Patent number: 8673310
    Abstract: The present invention relates to particularly stable and soluble scFv antibodies and Fab fragments specific for TNF, which comprise specific light chain and heavy chain sequences that are optimized for stability, solubility, in vitro and in vivo binding of TNF, and low immunogenicity. Said antibodies are designed for the diagnosis and/or treatment of TNF-mediated disorders. The nucleic acids, vectors and host cells for expression of the recombinant antibodies of the invention, methods for isolating them and the use of said antibodies in medicine are also disclosed.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: March 18, 2014
    Assignee: ESBA Tech, an Alcon Biomedical Research Unit LLC
    Inventors: Leonardo Borras, Tea Gunde, David Urech
  • Publication number: 20130053259
    Abstract: The invention provides methods of using sequence based analysis and rational strategies to modify and improve the structural and biophysical properties of single chain antibodies (scFvs), including stability, solubility, and antigen binding affinity. These methods and strategies can be used individually or in combination. The methods of the present invention also include the use of a database comprising scFv sequences from an experimentally screened scFv library of antibodies that have been selected to have superior solubility and stability. The invention also provides methods of using the properties found for these selected antibodies in a general approach for reshaping scFv antibodies to improve stability and solubility properties of a single chain antibody fragment.
    Type: Application
    Filed: August 23, 2012
    Publication date: February 28, 2013
    Applicant: ESBATECH, AN ALCON BIOMEDICAL RESEARCH UNIT, LLC.
    Inventors: David M. Urech, Leonardo Borras
  • Publication number: 20130023652
    Abstract: The present invention relates to an universal antibody acceptor framework and to methods for grafting non-human antibodies, e.g., rabbit antibodies, using a universal antibody acceptor framework. Antibodies generated by the methods of the invention are useful in a variety of diagnostic and therapeutic applications.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 24, 2013
    Applicant: ESBATECH, AN ALCON BIOMEDICAL RESEARCH UNIT LLC
    Inventors: Leonardo Borras, David Urech
  • Patent number: 8349322
    Abstract: The present invention relates to soluble and stable anti-VEGF immunobinders comprising CDRs from rabbit monoclonal antibodies. Said antibodies are designed for the diagnosis and/or treatment of VEGF-mediated disorders. The hybridomas, nucleic acids, vectors and host cells for expression of the recombinant antibodies of the invention, methods for isolating them and the use of said antibodies in medicine are also disclosed.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: January 8, 2013
    Assignee: ESBATech, an Alcon Biomedical Research Unit, LLC
    Inventors: Leonardo Borras, David Urech, Tea Gunde
  • Patent number: 8293235
    Abstract: The present invention relates to an universal antibody acceptor framework and to methods for grafting non-human antibodies, e.g., rabbit antibodies, using a universal antibody acceptor framework. Antibodies generated by the methods of the invention are useful in a variety of diagnostic and therapeutic applications.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: October 23, 2012
    Assignee: ESBATech, an Alcon Biomedical Research Unit, LLC
    Inventors: Leonardo Borras, David Urech
  • Patent number: 8280711
    Abstract: The invention provides methods of using sequence based analysis and rational strategies to modify and improve the structural and biophysical properties of single chain antibodies (scFvs), including stability, solubility, and antigen binding affinity. These methods and strategies can be used individually or in combination. The methods of the present invention also include the use of a database comprising scFv sequences from an experimentally screened scFv library of antibodies that have been selected to have superior solubility and stability. The invention also provides methods of using the properties found for these selected antibodies in a general approach for reshaping scFv antibodies to improve stability and solubility properties of a single chain antibody fragment.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: October 2, 2012
    Assignee: ESBATech, an Alcon Biomedical Research Unit, LLC.
    Inventors: David M. Urech, Leonardo Borras
  • Publication number: 20120014958
    Abstract: The present invention relates to soluble and stable anti-VEGF immunobinders comprising CDRs from rabbit monoclonal antibodies. Said antibodies are designed for the diagnosis and/or treatment of VEGF-mediated disorders. The hybridomas, nucleic acids, vectors and host cells for expression of the recombinant antibodies of the invention, methods for isolating them and the use of said antibodies in medicine are also disclosed.
    Type: Application
    Filed: June 25, 2009
    Publication date: January 19, 2012
    Applicant: ESBATech, an Alcon Biomedical Research Unit LLC
    Inventors: Leonardo Borras, David Urech, Tea Gunde
  • Publication number: 20110268728
    Abstract: The invention provides methods of using sequence based analysis and rational strategies to improve the solubility of immunobinders, and in particular of single chain antibodies (scFvs). The invention provides methods of engineering immunobinders, and in particular scFvs, by performing one or more substitutions with hydrophilic residues identified by analysis of a database of selected, stable scFv sequences. The invention also provides immunobinders with optimized solubility prepared according to the engineering methods of the invention.
    Type: Application
    Filed: June 25, 2009
    Publication date: November 3, 2011
    Applicant: ESBATech, an Alcon Biomedical Research Unit LLC
    Inventors: Leonardo Borras, David Urech