Patents by Inventor Vineet Rajgarhia

Vineet Rajgarhia 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).

  • Methods and materials for the production of organic products in cells of species
    Patent number: 7141410
    Abstract: The present invention relates to biocatalysts that are cells, optimally of the Crabtree-negative phenotype, comprising expression vectors encoding genes heterologous to the cell that enable increased production of organic products. More specifically, the invention relates to genetically modified Candida cells, methods for making the Candida cells, and their use in production of organic products, particularly lactic acid.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: November 28, 2006
    Assignee: Natureworks LLC
    Inventors: Vineet Rajgarhia, Merja Penttilä, Laura Ruohonen, Marja Ilmén, Kari Koivuranta, Pirkko Suominen
  • Genetically modified yeast species and fermenation processes using genetically modified yeast
    Publication number: 20060234364
    Abstract: Yeast cells are transformed with an exogenous xylose isomerase gene. Additional genetic modifications enhance the ability of the transformed cells to ferment xylose to ethanol or other desired fermentation products. Those modifications', include deletion of non-specific or specific aldose reductase gene(s), deletion of xylitol dehydrogenase gene(s) and/or overexpression of xylulokinase.
    Type: Application
    Filed: May 3, 2004
    Publication date: October 19, 2006
    Inventors: Vineet Rajgarhia, Kari Koivuranta, Merja Penttilä, Marja Ilmen, Pirkko Suominen, Aristos Aristidou, Christopher Miller, Stacey Olson, Laura Ruohonen
  • Methods and materials for the synthesis of organic products
    Patent number: 7109010
    Abstract: This invention provides biocatalysts that are recombinant yeast cells comprising recombinant expression vectors encoding heterologous lactate dehydrogenase genes for producing lactate.
    Type: Grant
    Filed: November 23, 2001
    Date of Patent: September 19, 2006
    Assignee: Nature Works LLC
    Inventors: Vineet Rajgarhia, Merja Penttilä, Laura Ruohonen, Marja Ilmén, Kari Koivuranta
  • Methods and materials for the synthesis of organic products
    Publication number: 20060110810
    Abstract: This invention provides biocatalysts that are recombinant yeast cells comprising recombinant expression vectors encoding heterologous lactate dehydrogenase genes for producing lactate.
    Type: Application
    Filed: October 31, 2005
    Publication date: May 25, 2006
    Inventors: Vineet Rajgarhia, Merja Penttila, Laura Ruohonen, Marja Ilmen, Kari Koivuranta
  • Methods and materials for the production of D-lactic acid in yeast
    Publication number: 20040029256
    Abstract: The present invention relates to biocatalysts that are cells, optimally of the Crabtree-negative phenotype, comprising expression vectors encoding genes heterologous to the cell that enable increased production of organic products. More specifically, the invention relates to genetically modified Kluyveromyces cells, methods for making the Kluyveromyces cells, and their use in production of organic products, particularly D-lactic acid.
    Type: Application
    Filed: May 30, 2003
    Publication date: February 12, 2004
    Inventors: Vineet Rajgarhia, Catherine Asleson Dundon, Stacey Olson, Pirkko Suominen, Ben Hause
  • Methods and materials for the synthesis of organic products
    Publication number: 20040029238
    Abstract: The invention provides methods and materials related to the production of organic products. Specifically, the invention provides various recombinant yeast cells, methods for culturing yeast cells, methods for making yeast cells, nucleic acid constructs, and methods and materials for producing various organic products.
    Type: Application
    Filed: November 4, 2002
    Publication date: February 12, 2004
    Inventors: Vineet Rajgarhia, Vassily Hatzimanikatis, Stacey Olson, Ting Carlson, John N. Starr, Jeffrey J. Kolstad, Aharon Eyal
  • Methods and materials for the production of L-lactic acid in yeast
    Publication number: 20030228671
    Abstract: Recombinant yeast are provided having, in one aspect, multiple exogenous LDH genes integrated into the genome, while leaving native PDC genes intact. In a second aspect, recombinant yeast are provided having an exogenous LDH gene integrated into its genome at the locus of a native PDC gene, with deletion of the native PDC gene. The recombinant yeast are useful in fermentation process for producing lactic acid.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 11, 2003
    Inventors: Ben Hause, Vineet Rajgarhia, Pirkko Suominen
  • Methods and materials for the production of organic products in cells of candida species
    Publication number: 20030190630
    Abstract: The present invention relates to biocatalysts that are cells, optimally of the Crabtree-negative phenotype, comprising expression vectors encoding genes heterologous to the cell that enable increased production of organic products. More specifically, the invention relates to genetically modified Candida cells, methods for making the Candida cells, and their use in production of organic products, particularly lactic acid.
    Type: Application
    Filed: September 23, 2002
    Publication date: October 9, 2003
    Inventors: Vineet Rajgarhia, Merja Penttila, Laura Ruohonen, Marja Ilmen, Kari Koivuranta, Pirkko Suominen
  • Methods and materials for the synthesis of organic products
    Publication number: 20030166179
    Abstract: This invention provides biocatalysts that are recombinant yeast cells comprising recombinant expression vectors encoding heterologous lactate dehydrogenase genes for producing lactate.
    Type: Application
    Filed: November 23, 2001
    Publication date: September 4, 2003
    Inventors: Vineet Rajgarhia, Merja Penttila, Laura Ruohonen, Marja Ilmen, Kari Koivuranta
  • Production of lactate using crabtree negative organisms in varying culture conditions
    Patent number: 6485947
    Abstract: Crabtree negative organisms such as Kluyveromyces, Pichia, Hansenula and Candida, are used to make selected organic products such as lactic acid. The organisms are cultured in a first culture medium that includes glucose, under conditions that promote cellular respiration. The organisms are then cultured under a second set of conditions that promote production of the selected organic product. The organisms preferably contain an exogenous lactate dehydrogenase gene.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: November 26, 2002
    Assignee: Cargill Dow Polymers, LLC
    Inventors: Vineet Rajgarhia, Vassily Hatzimanikatis, Stacey Olson, Ting Carlson, John N. Starr, Jeffrey J. Kolstad, Aharon Eyal