Patents by Inventor Indukuri Kumar

Indukuri Kumar 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).

  • Process for the preparation of carvedilol form-ii
    Publication number: 20070055069
    Abstract: The present invention provides a cost-effective, industrially feasible process for the manufacture of crystalline Carvedilol Form-II using novel Carvedilol salts comprising a step of reacting 4-(2,3-epoxy propoxy)carbazole (II) with 2-(2-methoxy phenoxy)ethyl amine (III) followed by acidification with mineral acid in presence of an organic solvent to yield acid addition salts, treatment of the said salts with base(s) in presence of organic solvent(s), water and isolation from the organic solvent(s) followed by crystallization from ethyl acetate.
    Type: Application
    Filed: April 16, 2004
    Publication date: March 8, 2007
    Inventors: Gorantla Ramanjaneyulu, Indukuri Kumar