Patents by Inventor Siddavattam Dayananda Siddavattam

Siddavattam Dayananda Siddavattam 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).

  • Genetically transformed microorganisms with simultaneous enhancement of reduction potential and reductive enzyme activities for biomass fermentation
    Patent number: 8741652
    Abstract: The present invention describes the genetic engineering of production microorganisms used in biotechnology to improve their properties so that they produce industrially useful products more efficiently from fermentable sugars derived from biomass. The engineered microorganisms endowed with functional coupling of oxidation and reduction of substrates by dehydrogenases requiring pyridine nucleotides (NAD/NADH) result in simultaneous enhancement of reduction potential enzyme activity involving the transfer of electrons. In particular, this invention relates to the construction of an excisable gene expression cassette for expression of two different dehydrogenases leading to enhanced production of ethanol.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: June 3, 2014
    Assignee: Nagarjuna Fertilizers and Chemicals Limited
    Inventors: Siddavattam Dayananda Siddavattam, Doddala Doddala Anitha Choudary, Karthikeyan Karthikeyan Venkatanarayanan
  • GENETICALLY TRANSFORMED MICROORGANISMS WITH SIMULTANEOUS ENHANCEMENT OF REDUCTION POTENTIAL AND REDUCTIVE ENZYME ACTIVITIES FOR BIOMASS FERMENTATION
    Publication number: 20110152511
    Abstract: The present invention describes the genetic engineering of production microorganisms used in biotechnology to improve their properties so that they produce industrially useful products more efficiently from fermentable sugars derived from biomass. The engineered microorganisms endowed with functional coupling of oxidation and reduction of substrates by dehydrogenases requiring pyridine nucleotides (NAD/NADH) result in simultaneous enhancement of reduction potential enzyme activity involving the transfer of electrons. In particular, this invention relates to the construction of an excisable gene expression cassette for expression of two different dehydrogenases leading to enhanced production of ethanol.
    Type: Application
    Filed: February 16, 2009
    Publication date: June 23, 2011
    Applicant: GARJUNA FERTILIZERS AND CHEMICALS LIMITED
    Inventors: Siddavattam Dayananda Siddavattam, Doddala Doddala Anitha Choudary, Karthikeyan Karthikeyan Venkatanarayanan