Patents by Inventor Ekaterina Savrasova

Ekaterina Savrasova 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).

  • Method for producing L-amino acids using bacteria of the Enterobacteriaceae family
    Publication number: 20060088919
    Abstract: There is disclosed a method for producing L-amino acid, for example L-threonine, L-lysine, L-histidine, L-phenylalanine, L-arginine or L-glutamic acid, using a bacterium of the Enterobacteriaceae family, wherein the bacterium has been modified to enhance an activity of D-xylose permease.
    Type: Application
    Filed: October 12, 2005
    Publication date: April 27, 2006
    Inventors: Konstantin Rybak, Ekaterina Slivinskaya, Ekaterina Savrasova, Valeriy Akhverdian, Elena Klyachko, Sergei Mashko, Vera Doroshenko, Larisa Airikh, Tatyana Leonova, Mikhail Gusyatiner, Elvira Voroshilova, Yury Kozlov, Yoshihiko Hara, Takuji Ueda
  • Process for producing L-amino acids by fermentation of a mixture of glucose and pentoses
    Publication number: 20060035346
    Abstract: A process for producing an L-amino acid, such as L-isoleucine, L-histidine, L-threonine and L-tryptophan, using bacterium belonging to the genus Escherichia is provided which comprises cultivating the L-amino acid-producing bacterium in a culture medium and collecting the L-amino acid from the culture medium, wherein the culture medium contains a mixture of glucose and pentose sugars, such as arabinose and xylose, as the main carbon source.
    Type: Application
    Filed: September 8, 2005
    Publication date: February 16, 2006
    Inventors: Ekaterina Savrasova, Elena Sycheva, Tatyana Michurina, Yury Kozlov
  • Method for producing L-threonine using bacteria belonging to the genus Escherichia
    Publication number: 20050181488
    Abstract: A method is disclosed for producing L-threonine using bacterium belonging to the genus Escherichia, wherein the bacterium has L-threonine productivity and has been modified to have enhanced expression of one or more of the following genes: glk, pgi, pfkA,, tpiA, gapA, pgk, eno, and pykA, which code for enzymes of glycolytic pathway.
    Type: Application
    Filed: February 8, 2005
    Publication date: August 18, 2005
    Inventors: Valery Akhverdian, Ekaterina Savrasova, Natalia Samsonova, Vladimir Ermishev, Irina Altman, Leonid Ptitsyn
  • L-thereonine producing bacterium belonging to the genus Escherichia and method for producing L-threonine
    Publication number: 20050124048
    Abstract: There is disclosed a method for producing L-threonine using bacterium belonging to the genus Escherichia wherein the bacterium has been modified to enhance an activity of aspartate-?-semialdehyde dehydrogenase.
    Type: Application
    Filed: December 3, 2004
    Publication date: June 9, 2005
    Inventors: Valery Akhverdian, Ekaterina Savrasova, Alla Kaplan, Andrey Lobanov, Yuri Kozlov