Patents by Inventor Siva Swaroop Pandrangi

Siva Swaroop Pandrangi 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: 9193674
    Abstract: The present invention relates to a simple, economical and short synthesis for the class of compounds chemically belonging to amino acrylic acids of general formula I exhibiting both antibacterial and anti-plasmodium (anti-malarial) activity, in good yield and purity. Process for the preparation of said compound comprising heating amine (A) and pantolactone or substituted pantolactone (B) in a solvent selected from cyclohexane, benzene, toluene, xylene, dipheny!ether; anisole, dioxane, etc. at a temperature in the range of 110-150° C. for about 24 hrs followed by further raising the temperature of the mixture to a temperature in the range of 200-230° C. for period in the range of 15 to 25 min followed by cooling the crude reaction mixture to room temperature to obtain compound of general Formula I.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: November 24, 2015
    Assignee: Council of Scientific & Industrial Research
    Inventors: Dumbala Srinivasa Reddy, Kashinath Komirishetty, Siva Swaroop Pandrangi
  • Publication number: 20140256976
    Abstract: The present invention relates to a simple, economical and short synthesis for the class of compounds chemically belonging to amino acrylic acids of general formula I exhibiting both antibacterial and anti-plasmodium (anti-malarial) activity, in good yield and purity. Process for the preparation of said compound comprising heating amine (A) and pantolactone or substituted pantolactone (B) in a solvent selected from cyclohexane, benzene, toluene, xylene, diphenylether; anisole, dioxane, etc. at a temperature in the range of 110-150° C. for about 24 hrs followed by further raising the temperature of the mixture to a temperature in the range of 200-230° C. for period in the range of 15 to 25 min followed by cooling the crude reaction mixture to room temperature to obtain compound of general Formula I.
    Type: Application
    Filed: October 15, 2012
    Publication date: September 11, 2014
    Inventors: Dumbala Srinivasa Reddy, Kashinath Komirishetty, Siva Swaroop Pandrangi