Patents by Inventor Chris M. CHUMSAE

Chris M. CHUMSAE 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).

  • Patent number: 9612247
    Abstract: Provided are methods for measuring the inherent stability of intrachain disulphide-containing domains (e.g., antibody variable domains) and for optimizing the positioning of intrachain disulphide-containing domains within a protein (e.g., a multispecific binding protein, e.g., a DVD-Ig). Also provided are methods of making multispecific binding proteins (e.g., DVD-Ig molecules) comprising two or more antibody variable domains in which the antibody variable domains are optimally positioned within the multispecific binding proteins to enhance stability of the multispecific binding protein. Multispecific binding proteins optimized using the methods disclosed herein are also provided.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: April 4, 2017
    Assignee: AbbVie Inc.
    Inventors: Chris M. Chumsae, Czeslaw H. Radziejewskia, Anton Manuilov
  • Publication number: 20160185848
    Abstract: The present invention relates to the field of protein production, and in particular to methods and compositions for modulating glycosylation of recombinant proteins expressed in host cells.
    Type: Application
    Filed: July 9, 2015
    Publication date: June 30, 2016
    Inventors: Patrick Hossler, Sean McDermott, Christopher Racicot, Joseph G. Matuck, Keith Cochran, Chris M. Chumsae
  • Publication number: 20150132320
    Abstract: The present invention is directed to modified antibodies, including anti-TNF? antibodies, in which C-terminal amino acids of heavy chain sequences are modified from a native sequence of proline-glycine-lysine (“PGK”) to one that includes a proline positioned between the glycine and lysine, resulting in a C-terminal sequence of proline-glycine-proline-lycine (“PGPK”). The invention further provides methods of producing and using such antibodies.
    Type: Application
    Filed: December 15, 2014
    Publication date: May 14, 2015
    Inventors: Chris M. Chumsae, Zehra Kaymakcalan
  • Publication number: 20150080557
    Abstract: Methylglyoxal (MGO)-modified recombinant TNF-alpha antibodies (e.g., Adalimumab) are identified. MGO modification decreases binding between Adalimumab and TNF-alpha. Methods are disclosed for reducing the presence of MGO-modified antibodies in the production of Adalimumab TNF-alpha antibodies.
    Type: Application
    Filed: December 3, 2014
    Publication date: March 19, 2015
    Inventor: Chris M. CHUMSAE
  • Publication number: 20150045542
    Abstract: Methylglyoxal (MGO)-modified recombinant TNF-alpha antibodies (e.g., Adalimumab) are identified. MGO modification decreases binding between Adalimumab and TNF-alpha. Methods are disclosed for reducing the presence of MGO-modified antibodies in the production of Adalimumab TNF-alpha antibodies.
    Type: Application
    Filed: October 23, 2014
    Publication date: February 12, 2015
    Inventor: CHRIS M. CHUMSAE
  • Patent number: 8921526
    Abstract: The present invention is directed to modified antibodies, including anti-TNF? antibodies, in which C-terminal amino acids of heavy chain sequences are modified from a native sequence of proline-glycine-lysine (“PGK”) to one that includes a proline positioned between the glycine and lysine, resulting in a C-terminal sequence of proline-glycine-proline-lycine (“PGPK”). The invention further provides methods of producing and using such antibodies.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: December 30, 2014
    Assignee: AbbVie, Inc.
    Inventors: Chris M. Chumsae, Zehra Kaymakcalan
  • Publication number: 20140271626
    Abstract: The present invention is directed to modified antibodies, including anti-TNF? antibodies, in which C-terminal amino acids of heavy chain sequences are modified from a native sequence of proline-glycine-lysine (“PGK”) to one that includes a proline positioned between the glycine and lysine, resulting in a C-terminal sequence of proline-glycine-proline-lycine (“PGPK”). The invention further provides methods of producing and using such antibodies.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Inventors: Chris M. Chumsae, Zehra Kaymakcalan
  • Publication number: 20140275486
    Abstract: Methylglyoxal (MGO)-modified recombinant TNF-alpha antibodies (e.g., Adalimumab) are identified. MGO modification decreases binding between Adalimumab and TNF-alpha. Methods are disclosed for reducing the presence of MOO-modified antibodies in the production of Adalimumab TNF-alpha antibodies.
    Type: Application
    Filed: November 12, 2013
    Publication date: September 18, 2014
    Inventor: Chris M. CHUMSAE
  • Publication number: 20140234885
    Abstract: Provided are methods for measuring the inherent stability of intrachain disulphide-containing domains (e.g., antibody variable domains) and for optimizing the positioning of intrachain disulphide-containing domains within a protein (e.g., a multispecific binding protein, e.g., a DVD-Ig). Also provided are methods of making multispecific binding proteins (e.g., DVD-Ig molecules) comprising two or more antibody variable domains in which the antibody variable domains are optimally positioned within the multispecific binding proteins to enhance stability of the multispecific binding protein. Multispecific binding proteins optimized using the methods disclosed herein are also provided.
    Type: Application
    Filed: January 22, 2014
    Publication date: August 21, 2014
    Applicant: AbbVie, Inc.
    Inventors: Chris M. CHUMSAE, Czeslaw H. RADZIEJEWSKIA, Anton MANUILOV