Patents by Inventor Stephen Gorfien

Stephen Gorfien 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: 9321996
    Abstract: The present invention provides a cell culture medium formulation that supports the in vitro cultivation, particularly in suspension, of mammalian cells, particularly epithelial cells and fibroblast cells, and methods for cultivating mammalian cells in suspension in vitro using these media. The media comprise a basal medium and a polyanionic or polyanionic compound, preferably a polysulfonated or polysulfated compound, and more preferably dextran sulfate. The present invention also provides chemically defined, protein-free eukaryotic cell culture media comprising an iron chelate and zinc, which is capable of supporting the growth (and particularly the high-density growth of mammalian cells) in suspension culture, increasing the level of expression of recombinant protein in cultured cells, and/or increasing virus production in cultured cells.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: April 26, 2016
    Assignee: Life Technologies Corporation
    Inventors: Stephen Gorfien, Richard Fike, Glenn Godwin, Joyce Dzimian, David Epstein, Dale Gruber, Don McClure, Paul Price
  • Publication number: 20150079659
    Abstract: The present invention provides a cell culture medium formulation that supports the in vitro cultivation, particularly in suspension, of mammalian cells, particularly epithelial cells and fibroblast cells, and methods for cultivating mammalian cells in suspension in vitro using these media. The media comprise a basal medium and a polyanionic or polyanionic compound, preferably a polysulfonated or polysulfated compound, and more preferably dextran sulfate. The present invention also provides chemically defined, protein-free eukaryotic cell culture media comprising an iron chelate and zinc, which is capable of supporting the growth (and particularly the high-density growth of mammalian cells) in suspension culture, increasing the level of expression of recombinant protein in cultured cells, and/or increasing virus production in cultured cells.
    Type: Application
    Filed: May 22, 2014
    Publication date: March 19, 2015
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Stephen GORFIEN, Richard FIKE, GLENN GODWIN, JOYCE WOLANSKE, David EPSTEIN, Dale GRUBER, Don MCCLURE, Paul PRICE
  • Publication number: 20140273205
    Abstract: The present invention provides serum-free cell culture media formulations which are capable of supporting the in vitro cultivation of animal cells. The media comprise at least one nutrient of non-animal derivation, such as at least one plant peptide and/or at least one non-animal or plant lipid and/or fatty acid. The media may further optionally comprise an enzymatic digest or extract of yeast cells. The present invention also provides methods of cultivating animal cells in vitro using these cell culture media formulations. In addition, the media of the present invention can be used for growth of animal cells for virus production.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Paul PRICE, Stephen GORFIEN, Douglas DANNER, Mark PLAVSIC
  • Patent number: 8785194
    Abstract: The present invention provides a cell culture medium formulation that supports the in vitro cultivation, particularly in suspension, of mammalian cells, particularly epithelial cells and fibroblast cells, and methods for cultivating mammalian cells in suspension in vitro using these media. The media comprise a basal medium and a polyanionic or polyanionic compound, preferably a polysulfonated or polysulfated compound, and more preferably dextran sulfate. The present invention also provides chemically defined, protein-free eukaryotic cell culture media comprising an iron chelate and zinc, which is capable of supporting the growth (and particularly the high-density growth of mammalian cells) in suspension culture, increasing the level of expression of recombinant protein in cultured cells, and/or increasing virus production in cultured cells.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: July 22, 2014
    Assignee: Life Technologies Corporation
    Inventors: Stephen Gorfien, Richard Fike, Glenn Godwin, Joyce Dzimian, David A. Epstein, Dale Gruber, Don McClure, Paul Price
  • Publication number: 20130295667
    Abstract: The present invention provides a cell culture medium formulation that supports the in vitro cultivation, particularly in suspension, of mammalian cells, particularly epithelial cells and fibroblast cells, and methods for cultivating mammalian cells in suspension in vitro using these media. The media comprise a basal medium and a polyanionic or polyanionic compound, preferably a polysulfonated or polysulfated compound, and more preferably dextran sulfate. The present invention also provides chemically defined, protein-free eukaryotic cell culture media comprising an iron chelate and zinc, which is capable of supporting the growth (and particularly the high-density growth of mammalian cells) in suspension culture, increasing the level of expression of recombinant protein in cultured cells, and/or increasing virus production in cultured cells.
    Type: Application
    Filed: March 20, 2013
    Publication date: November 7, 2013
    Inventors: Stephen GORFIEN, Richard Fike, Glenn Godwin, Joyce Dzimian, David Epstein, Dale Gruber, Paul Price
  • Patent number: 8455246
    Abstract: The present invention provides a cell culture medium formulation that supports the in vitro cultivation, particularly in suspension, of mammalian cells, particularly epithelial cells and fibroblast cells, and methods for cultivating mammalian cells in suspension in vitro using these media. The media comprise a basal medium and a polyanionic or polyanionic compound, preferably a polysulfonated or polysulfated compound, and more preferably dextran sulfate. The present invention also provides chemically defined, protein-free eukaryotic cell culture media comprising an iron chelate and zinc, which is capable of supporting the growth (and particularly the high-density growth of mammalian cells) in suspension culture, increasing the level of expression of recombinant protein in cultured cells, and/or increasing virus production in cultured cells.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: June 4, 2013
    Assignee: Life Technologies Corporation
    Inventors: Stephen Gorfien, Richard Fike, Glenn Godwin, Joyce Dzimian, David A. Epstein, Dale Gruber, Paul Price
  • Publication number: 20130084640
    Abstract: The present invention provides serum-free cell culture media formulations which are capable of supporting the in vitro cultivation of animal cells. The media comprise at least one nutrient of non-animal derivation, such as at least one plant peptide and/or at least one non-animal or plant lipid and/or fatty acid. The media may further optionally comprise an enzymatic digest or extract of yeast cells. The present invention also provides methods of cultivating animal cells in vitro using these cell culture media formulations. In addition, the media of the present invention can be used for growth of animal cells for virus production.
    Type: Application
    Filed: September 4, 2012
    Publication date: April 4, 2013
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Paul PRICE, Stephen Gorfien, Douglas Danner, Mark Plavsic
  • Publication number: 20060148074
    Abstract: The present invention provides a cell culture medium formulation that supports the in vitro cultivation, particularly in suspension, of mammalian cells, particularly epithelial cells and fibroblast cells, and methods for cultivating mammalian cells in suspension in vitro using these media. The media comprise a basal medium and a polyanionic or polyanionic compound, preferably a polysulfonated or polysulfated compound, and more preferably dextran sulfate. The present invention also provides chemically defined, protein-free eukaryotic cell culture media comprising an iron chelate and zinc, which is capable of supporting the growth (and particularly the high-density growth of mammalian cells) in suspension culture, increasing the level of expression of recombinant protein in cultured cells, and/or increasing virus production in cultured cells.
    Type: Application
    Filed: June 14, 2005
    Publication date: July 6, 2006
    Inventors: Stephen Gorfien, Richard Fike, Glenn Godwin, Joyce Dzimian, David Epstein, Dale Gruber, Don McClure, Paul Price