Patents by Inventor Muthulingam Arunagiri

Muthulingam Arunagiri 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 PURE PALIPERIDONE
    Publication number: 20120165527
    Abstract: The present invention relates to an improved process for the preparation of pure Paliperidone of formula (I). The present invention more specifically provides an improved process for the preparation of pure Paliperidone which may contain impurities in the acceptable level of pharmacopoeia requirement specifically 3-{2-[4-(5-Fluoro-benzo[d]isoxazol-3-yl]-piperidin-1-yl]-ethyl}-2-methyl-7,8-dihydro-6H-pyrido[1,2-a]pyrimidine-4,9-dione of Formula (IV).
    Type: Application
    Filed: August 4, 2010
    Publication date: June 28, 2012
    Applicant: ORCHID CHEMICALS & PHARMACEUTICALS LTD.
    Inventors: Buchi Reddy Reguri, Muthulingam Arunagiri, Saravanakumar Kasiyappan Gurusamy, Kondalarao Ponnapally
  • Process for preparing telmisartan
    Patent number: 7943781
    Abstract: A process comprising cyclizing 3-amino-4-butyramido-5-methylbenzoic acid to form 2-n-propyl-4-methyl-benzimidazole-6-carboxylic acid.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: May 17, 2011
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Sundaram Venkataraman, Vijayavitthal Thippannachar Mathad, Srirami Reddy Kikkuru, Srinivasan Neti, Raveendra Reddy Chinta, Muthulingam Arunagiri, Lalitha Kumari Routhu
  • PROCESS FOR PREPARING TOLTERODINE
    Publication number: 20080146844
    Abstract: A process for preparing tolterodine with high purity.
    Type: Application
    Filed: January 28, 2008
    Publication date: June 19, 2008
    Applicants: DR. REDDY'S LABORATORIES LIMITED, DR. REDDY'S LABORATORIES, INC.
    Inventors: Sundaram Venkataraman, Vijayavitthal Thippannachar Mathad, Kikkuru Srirami Reddy, Neti Srinivasan, Chinta Raveendra Reddy, Muthulingam Arunagiri, Routhu Lalitha Kumari
  • Process for preparing tolterodine
    Patent number: 7355077
    Abstract: A process for preparing tolterodine with high purity.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: April 8, 2008
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Sundaram Venkataraman, Vijayavitthal Thippannachar Mathad, Kikkuru Srirami Reddy, Neti Srinivasan, Chinta Raveendra Reddy, Muthulingam Arunagiri, Routhu Lalitha Kumari
  • Process for Preparing Telmisartan
    Publication number: 20070287840
    Abstract: A process for preparing telmisartan and intermediates formed in the process.
    Type: Application
    Filed: October 18, 2005
    Publication date: December 13, 2007
    Inventors: Sundaram Venkataraman, Vijayavitthal Thippannachar Mathad, Srirami Kikkuru, Srinivasan Neti, Raveendra Chinta, Muthulingam Arunagiri, Lalitha Routhu
  • Process for preparing tolterodine
    Publication number: 20060094904
    Abstract: A process for preparing tolterodine with high purity.
    Type: Application
    Filed: October 26, 2005
    Publication date: May 4, 2006
    Inventors: Sundaram Venkataraman, Vijayavitthal Mathad, Kikkuru Reddy, Neti Srinivasan, Chinta Reddy, Muthulingam Arunagiri, Routhu Kumari