Patents by Inventor Sai Prasanna Bhagya Lakshmi Ginjupalli

Sai Prasanna Bhagya Lakshmi Ginjupalli 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 Telmisartan
    Patent number: 7884214
    Abstract: The present invention encompasses a method for the preparation of Telmisartan comprises, through Telmisartan dihydrochloride comprises i) Condensing 4-Methyl-2-n-propyl-1H-benzimidazole-6-carboxylic acid with N-Methyl-O-phenylenediamine dihydrochloride to yields 4-methyl-6 (1-methyl benzimidazol-2-yl)-2-n-propyl 1H-benzimidazole ii) Treating 4-methyl-6-(1-methylbenzimidazol-2-yl)-2-n-propyl-1H-benzimidazole with 4?-(bromomethyl)-2-biphenyl-2-carboxylate in presence of a base in an organic solvent and isolating the ester as acid addition salt iii) Converting ester acid addition salt to Telmisartan dihydrochloride and iv) Converting Telmisartan dihydrochloride to Telmisartan.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: February 8, 2011
    Assignee: Matrix Laboratories Limited
    Inventors: Satyanarayana Chava, Seeta Ramanjaneyulu Gorantla, Sai Prasanna Bhagya Lakshmi Ginjupalli