Patents by Inventor Venkiteswaran Subramanian

Venkiteswaran Subramanian 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: 20150184166
    Abstract: The invention provides isolated N-demethylase genes and caffeine responsive proteins.
    Type: Application
    Filed: March 11, 2013
    Publication date: July 2, 2015
    Inventors: Venkiteswaran Subramanian, Ryan Summers, Michael Tai-Man Louie
  • Patent number: 8951752
    Abstract: The invention provides isolated nucleic acid encoding one or more gene products that allow for degradation of caffeine and related structures, and for preparation of intermediates in that catabolic pathway. Further provided are methods of using one or more of those gene products.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: February 10, 2015
    Assignee: University of Iowa Research Foundation
    Inventors: Venkiteswaran Subramanian, Michael Tai-Man Louie, Ryan Summers
  • Patent number: 8940510
    Abstract: The invention provides spray-dried preparations of microbes and methods of using those microbes.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: January 27, 2015
    Assignee: University of Iowa Research Foundation
    Inventors: Venkiteswaran Subramanian, James H. Glenn, IV, Shuvendu Das
  • Patent number: 8822178
    Abstract: The present disclosure relates to codon-optimized brazzein coding sequences and the expression of brazzein and variants thereof using yeast expression systems. The disclosure also relates to methods of expression of proteins to enhance the sweetness taste profile of foods and/or beverages.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: September 2, 2014
    Inventors: Loren Miles, Michael Louie, Venkiteswaran Subramanian
  • Publication number: 20140227729
    Abstract: The invention provides isolated nucleic acid encoding one or more gene products that allow for degradation of caffeine and related structures, and for preparation of intermediates in that catabolic pathway. Further provided are methods of using one or more of those gene products.
    Type: Application
    Filed: October 18, 2012
    Publication date: August 14, 2014
    Applicant: University of Iowa Research Foundation Iowa Centers for Enterprise
    Inventors: Venkiteswaran Subramanian, Michael Tai-Man Louie, Ryan Summers
  • Publication number: 20120252681
    Abstract: The invention provides methods employing iterative cycles of recombination and selection/screening for evolution of whole cells and organisms toward acquisition of desired properties. Examples of such properties include enhanced recombinogenicity, genome copy number, and capacity for expression and/or secretion of proteins and secondary metabolites.
    Type: Application
    Filed: December 2, 2011
    Publication date: October 4, 2012
    Applicant: CODEXIS MAYFLOWER HOLDINGS, LLC
    Inventors: Stephen del Cardayre, Matthew Tobin, Willem P.C. Stemmer, Jon E. Ness, Jeremy Minshull, Phillip Patten, Venkiteswaran Subramanian, Linda A. Castle, Claus M. Krebber, Steven H. Bass, Ying-Xin Zhang, Tony Cox, Gjalt Huisman, Ling Yuan, Joseph A. Affholter
  • Publication number: 20110207190
    Abstract: The invention provides spray-dried preparations of microbes useful for oxidoreductase reactions, e.g., xylitol production, and methods of making and using those microbes.
    Type: Application
    Filed: February 3, 2011
    Publication date: August 25, 2011
    Applicant: University of Iowa Research Foundation
    Inventors: Venkiteswaran Subramanian, Michael Tai-Man Louie
  • Publication number: 20100330630
    Abstract: The invention provides spray-dried preparations of microbes and methods of using those microbes.
    Type: Application
    Filed: November 16, 2007
    Publication date: December 30, 2010
    Applicant: University of Iowa Research Foundation
    Inventors: Venkiteswaran Subramanian, James H. Glenn IV, Shuvendu Das
  • Patent number: 7794972
    Abstract: Novel benzoate- or anthranilate-inducible promoters, and novel tandem promoters, and variants and improved mutants thereof, useful for commercial prokaryotic fermentation systems, nucleic acid constructs containing the promoters, expression systems using them, methods for expressing proteins by use thereof, and proteins expressed thereby.
    Type: Grant
    Filed: January 3, 2005
    Date of Patent: September 14, 2010
    Assignee: Pfenex Inc.
    Inventors: Diane M. Retallack, Venkiteswaran Subramanian
  • Patent number: 7794994
    Abstract: Described are enzyme systems specific for acetone and methods of using these enzyme systems to detect acetone in biological or environmental samples. Biosensors containing these enzyme systems are disclosed, in which detection of acetone may be achieved by linking electrochemical, photometric, or other detection means to one or more acetone-specific enzyme reactions or pathways. Methods of using such acetone-specific biosensors include subject management of weight loss, disease detection, and bioavailability monitoring of therapeutics.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: September 14, 2010
    Assignee: Kemeta, LLC
    Inventors: Paul E. Cranley, Jeffrey R. Allen, Kristine L. Danowski, James A. McIntyre, Theodore E. Miller, Jr., Bettina M. Rosner, Alan D. Strickland, Venkiteswaran Subramanian, Larry Sun
  • Publication number: 20070048775
    Abstract: The invention provides methods employing iterative cycles of recombination and selection/screening for evolution of whole cells and organisms toward acquisition of desired properties. Examples of such properties include enhanced recombinogenicity, genome copy number, and capacity for expression and/or secretion of proteins and secondary metabolites.
    Type: Application
    Filed: August 17, 2006
    Publication date: March 1, 2007
    Inventors: Stephen Cardayre, Matthew Tobin, Willem Stemmer, Jon Ness, Jeremy Minshull, Phillip Patten, Venkiteswaran Subramanian, Linda Castle, Claus Krebber, Steven Bass, Ying-Xin Zhang, Tony Cox, Gjalt Huisman, Ling Yuan, Joseph Affholter
  • Publication number: 20070026446
    Abstract: The invention provides methods employing iterative cycles of recombination and selection/screening for evolution of whole cells and organisms toward acquisition of desired properties. Examples of such properties include enhanced recombinogenicity, genome copy number, and capacity for expression and/or secretion of proteins and secondary metabolites.
    Type: Application
    Filed: August 17, 2006
    Publication date: February 1, 2007
    Inventors: Stephen del Cardayre, Matthew Tobin, Willem Stemmer, Jon Ness, Jeremy Minshull, Phillip Patten, Venkiteswaran Subramanian, Linda Castle, Claus Krebber, Steven Bass, Ying-Xin Zhang, Tony Cox, Gjalt Huisman, Ling Yuan, Joseph Affholter
  • Publication number: 20060253923
    Abstract: Methods of shuffling DNA to obtain recombinant herbicide tolerance nucleic acids encoding proteins having new or improved herbicide tolerance activities, libraries of shuffled herbicide tolerance nucleic acids, transgenic plants and DNA shuffling mixtures are provided.
    Type: Application
    Filed: May 17, 2006
    Publication date: November 9, 2006
    Inventors: Venkiteswaran Subramanian, Willem Stemmer, Linda Castle, Umesh Muchhal, Daniel Siehl
  • Publication number: 20060253922
    Abstract: Methods of shuffling DNA to obtain recombinant herbicide tolerance nucleic acids encoding proteins having new or improved herbicide tolerance activities, libraries of shuffled herbicide tolerance nucleic acids, transgenic plants and DNA shuffling mixtures are provided.
    Type: Application
    Filed: May 17, 2006
    Publication date: November 9, 2006
    Inventors: Venkiteswaran Subramanian, Willem Stemmer, Linda Castle, Umesh Muchhal, Daniel Siehl
  • Publication number: 20060242731
    Abstract: Methods of shuffling DNA to obtain recombinant herbicide tolerance nucleic acids encoding proteins having new or improved herbicide tolerance activities, libraries of shuffled herbicide tolerance nucleic acids, transgenic plants and DNA shuffling mixtures are provided.
    Type: Application
    Filed: May 17, 2006
    Publication date: October 26, 2006
    Inventors: Venkiteswaran Subramanian, Willem Stemmer, Linda Castle, Umesh Muchhal, Daniel Siehl
  • Publication number: 20050202544
    Abstract: Novel benzoate- or anthranilate-inducible promoters, and novel tandem promoters, and variants and improved mutants thereof, useful for commercial prokaryotic fermentation systems, nucleic acid constructs containing the promoters, expression systems using them, methods for expressing proteins by use thereof, and proteins expressed thereby.
    Type: Application
    Filed: January 3, 2005
    Publication date: September 15, 2005
    Applicant: Dow Global technologies Inc.
    Inventors: Diane Retallack, Venkiteswaran Subramanian
  • Publication number: 20050147994
    Abstract: A biologic can be immobilized in a transparent polyurethane-hydrogel composition. Such a polyurethane-hydrogel composition can be prepared from forming a polyurethane-hydrogel mixture and immobilizing a biologic in the mixture. The mixture can be formed by admixing a prepolymer and a water-soluble crosslinker in aqueous solvent and in the substantial absence of organic solvent. A suitable prepolymer generally includes at least one water-soluble polyol and at least one isocyanate and can be added to the mixture in an amount of no greater than about 5 weight percent based on total weight of all components. A suitable crosslinker generally has a crosslinker functionality of at least 2. A biologic includes cells, peptides, nucleics, peptide nucleic acids, saccharides, lipopolysaccharides, glycolipids, and combinations of these. A polyurethane-hydrogel composition having an immobilized biologic can be particularly useful for biomedical applications.
    Type: Application
    Filed: November 1, 2004
    Publication date: July 7, 2005
    Inventors: Andrew Sandford, Venkiteswaran Subramanian, Jeffrey Allen, Paul Swanson, Joey Storer, Deepak Sharma
  • Publication number: 20050084921
    Abstract: Described are enzyme systems specific for acetone and methods of using these enzyme systems to detect acetone in biological or environmental samples. Biosensors containing these enzyme systems are disclosed, in which detection of acetone may be achieved by linking electrochemical, photometric, or other detection means to one or more acetone-specific enzyme reactions or pathways. Methods of using such acetone-specific biosensors include subject management of weight loss, disease detection, and bioavailability monitoring of therapeutics.
    Type: Application
    Filed: May 5, 2004
    Publication date: April 21, 2005
    Inventors: Paul Cranley, Jeffrey Allen, Kristine Danowski, James McIntyre, Theodore Miller Jr, Bettina Rosner, Alan Strickland, Venkiteswaran Subramanian, Larry Sun
  • Publication number: 20050060767
    Abstract: Methods of shuffling DNA to obtain recombinant herbicide tolerance nucleic acids encoding proteins having new or improved herbicide tolerance activities, libraries of shuffled herbicide tolerance nucleic acids, transgenic plants and DNA shuffling mixtures are provided.
    Type: Application
    Filed: July 25, 2003
    Publication date: March 17, 2005
    Inventors: Venkiteswaran Subramanian, Willem Stemmer, Linda Castle, Umesh Muchhal, Daniel Siehl
  • Publication number: 20030134294
    Abstract: A biologic can be immobilized in a transparent polyurethane-hydrogel composition. Such a polyurethane-hydrogel composition can be prepared from forming a polyurethane-hydrogel mixture and immobilizing a biologic in the mixture. The mixture can be formed by admixing a prepolymer and a water-soluble crosslinker in aqueous solvent and in the substantial absence of organic solvent. A suitable prepolymer generally includes at least one water-soluble polyol and at least one isocyanate and can be added to the mixture in an amount of no greater than about 5 weight percent based on total weight of all components. A suitable crosslinker generally has a crosslinker functionality of at least 2. A biologic includes cells, peptides, nucleics, peptide nucleic acids, saccharides, lipopolysaccharides, glycolipids, and combinations of these. A polyurethane-hydrogel composition having an immobilized biologic can be particularly useful for biomedical applications.
    Type: Application
    Filed: May 21, 2002
    Publication date: July 17, 2003
    Inventors: Andrew F. Sandford, Venkiteswaran Subramanian, Jeffrey R. Allen, Paul E. Swanson, Joey W. Storer, Deepak K. Sharma