Patents by Inventor S. Thirumalai Rajan

S. Thirumalai Rajan 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).

  • CRYSTALLINE POLYMORPHIC FORMS OF FEXOFENADINE
    Publication number: 20100174085
    Abstract: The present invention is related to a novel polymorph of Fexofenadine and processes of preparation thereof.
    Type: Application
    Filed: March 15, 2010
    Publication date: July 8, 2010
    Applicant: DR. REDDY'S LABORATORIES LTD.
    Inventors: M. Satyanarayana Reddy, S. Thirumalai Rajan, U. V. Bhaskara Rao
  • Crystalline forms of fexofenadine and its hydrochloride
    Patent number: 7700779
    Abstract: The present invention is related to novel polymorph of Fexofenadine and Fexofenadine hydrochloride of formula 1 and process of preparation thereof. The present invention is also directed to provide pure novel polymorphs of Fexofenadine and its hydrochloride by a simple process which is cost effective, commercially viable and environment friendly.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: April 20, 2010
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: M. Satyanarayana Reddy, S. Thirumalai Rajan, U. V. Bhaskara Rao
  • Novel crystalline forms of 4-[4-[4-(hydroxydiphenylmethyl)-1- piperidinyl]-1-hydroxybutyl]-$g(a)-dimethylbenzene acetic acid and its hydrochloride
    Publication number: 20040077683
    Abstract: The present invention is related to novel polymorph of Fexofenadine and Fexofenadine hydrochloride of formula 1 and process of preparation thereof. The present invention is also directed to provide pure novel polymorphs of Fexofenadine and its hydrochloride by a simple process which is cost effective, commercially viable and environment friendly.
    Type: Application
    Filed: November 12, 2003
    Publication date: April 22, 2004
    Inventors: M. Satyanarayana Reddy, S. Thirumalai Rajan, U.V. Bhaskara Rao