Patents by Inventor RAVINDRA CHANDRAPPA KORAMANGALA

RAVINDRA CHANDRAPPA KORAMANGALA 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).

  • POLYMORPHIC FORMS OF 4,5-DIHYDRO-1H-PYRROLO[2,3-F]QUINOLINE-2,7,9-TRICARBOXYLIC ACID AND ITS DISODIUM SALT, PROCESS FOR THEIR PREPARATION AND THEIR USE
    Publication number: 20170022200
    Abstract: The present disclosure relates to polymorphic form of PQQ and/or its salts represented by formula (I), wherein “n” and “m” are selected from a group consisting of: (a) “n”=3, “m”=0 and (b) “n”=1, “m”=2; and; R3 is Na+. The present disclosure also relates to a process for preparing the polymorphic form of compound of formula (I) and/or its salts, a composition comprising the polymorphic form of compound of formula (I) and/or its salts and use thereof.
    Type: Application
    Filed: April 15, 2015
    Publication date: January 26, 2017
    Applicant: ANTHEM BIOSCIENCES PRIVATE LIMITED
    Inventors: RAJULU GAVARA GOVINDA, GANESH SAMBASIVAM, TOM THOMAS PUTHIAPARAMPIL, RAVINDRA CHANDRAPPA KORAMANGALA
  • Compounds of 3-(5-substituted Oxy-2, 4-dinitrophenyl)-2-oxo-propionic acid ester, synthesis and applications thereof
    Patent number: 9115128
    Abstract: Synthesis of the novel compound 3 (3-(5-substituted Oxy-2,4-dinitro-phenyl)-2-oxo-propionic acid ester) to make Pyrroloquinoline quinone (PQQ) and using it for pharmaceutical purposes is described. More specifically, this disclosure relates to synthesizing the PQQ in an efficient method by using a novel intermediate Formula 1 resulting in a shorter process and higher yield of PQQ. A unique process to make sodium compound of PQQ using either sodium hydroxide and/or sodium carbonate is also shown.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: August 25, 2015
    Assignee: ANTHEM BIOSCIENCES PVT. LTD.
    Inventors: Tom Thomas Puthiaparampil, Ganesh Sambasivam, Rajulu Gavara Govinda, Ravindra Chandrappa Koramangala
  • COMPOUNDS OF 3-(5-SUSTITUTED OXY-2, 4-DINITROPHENYL)-2-OXO-PROPIONIC ACID ESTER, SYNTHESIS AND APPLICATIONS THEREOF
    Publication number: 20140364613
    Abstract: Synthesis of the novel compound 3 (3-(5-substituted Oxy-2,4-dinitro-phenyl)-2-oxo-propionic acid ester) to make Pyrroloquinoline quinone (PQQ) and using it for pharmaceutical purposes is described. More specifically, this disclosure relates to synthesizing the PQQ in an efficient method by using a novel intermediate Formula 1 resulting in a shorter process and higher yield of PQQ. A unique process to make sodium compound of PQQ using either sodium hydroxide and/or sodium carbonate is also shown.
    Type: Application
    Filed: March 18, 2014
    Publication date: December 11, 2014
    Applicant: ANTHEM BIOSCIENCES PVT.LTD
    Inventors: TOM THOMAS PUTHIAPARAMPIL, GANESH SAMBASIVAM, RAJULU GAVARA GOVINDA, RAVINDRA CHANDRAPPA KORAMANGALA