Patents by Inventor Pratap Reddy Padi

Pratap Reddy Padi 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).

  • Processes for the preparation of sitagliptin and pharmaceutically acceptable salts thereof
    Patent number: 8969558
    Abstract: There is provided a process for preparation of sitagliptin of Formula II or a pharmaceutically acceptable salt thereof by deprotection of Formula IX.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: March 3, 2015
    Assignee: Dr. Reddy's Laboratories Limited
    Inventors: Pratap Reddy Padi, Babu Ireni, Srinivas Polavarapu, Shailaja Padamata, Kavitha Nerella, Vijaya Anand Ramasamy, Ranga Reddy Vangala
  • PROCESSES FOR THE PREPARATION OF SITAGLIPTIN AND PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF
    Publication number: 20140128607
    Abstract: There is provided salts and polymorphs of sitagliptin, processes for the preparation thereof, and pharmaceutical compositions comprising the same.
    Type: Application
    Filed: December 5, 2013
    Publication date: May 8, 2014
    Applicants: Dr. Reddy's Laboratories, Inc., Dr. Reddy's Laboratories Limited
    Inventors: Pratap Reddy Padi, Babu Ireni, Srinivas Polavarapu, Shailaja Padamata, Kavitha Nerella, Vijaya Anand Ramasamy, Ranga Reddy Vangala
  • Processes for the preparation of sitagliptin and pharmaceutically acceptable salts thereof
    Patent number: 8309724
    Abstract: There is provided an improved process for the preparation of Sitagliptin of Formula II by reduction of compound of Formula VIII to Formula IX followed by deprotection of Formula IX to afford Sitagliptin of Formula II.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: November 13, 2012
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Incorporated
    Inventors: Pratap Reddy Padi, Babu Ireni, Srinivas Polavarapu, Shailaja Padamata, Kavitha Nerella, Vijaya Anand Ramasamy, Ranga Reddy Vangala
  • PROCESSES FOR THE PREPARATION OF SITAGLIPTIN AND PHARMACEUTICLLY ACCEPTABLE SALTS THEREOF
    Publication number: 20100274017
    Abstract: There is provided salts and polymorphs of sitagliptin, processes for the preparation thereof, and pharmaceutical compositions comprising the same.
    Type: Application
    Filed: December 18, 2008
    Publication date: October 28, 2010
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Pratap Reddy Padi, Babu Ireni, Srinivas Polavarapu, Shailaja Padamata, Kavitha Nerella, Vijaya Anand Ramasamy, Ranga Reddy Vangala
  • PROCESSES FOR THE PREPARATION OF PRASUGREL , AND ITS SALTS AND POLYMORPHS
    Publication number: 20100261908
    Abstract: Processes for the preparation of prasugrel and its pharmaceutically acceptable salts thereof. Also disclosed are polymorphic forms of prasugrel hydrochloride and processes for their preparation.
    Type: Application
    Filed: November 7, 2008
    Publication date: October 14, 2010
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Pratap Reddy Padi, Seetha Rama Sarma Peri, Madhusudhan Reddy Ganta, Srinivas Polavarapu, Praveen Cherukupally, Babu Ireni, Shailaja Padamata, Krishna Jonnada, Krishna Vinigari, Kavitha Nerella
  • Process for preparing valsartan
    Patent number: 7659406
    Abstract: A process for preparing valsartan.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: February 9, 2010
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Pratap Reddy Padi, Satya Narayana Bollikonda, Ananda Mohan Jasty, Suma Latha Yasareni, Vishal Dayaram Parmar
  • ARIPIPRAZOLE CO-CRYSTALS
    Publication number: 20090054455
    Abstract: Co-crystals comprising aripiprazole and fumaric acid.
    Type: Application
    Filed: February 2, 2007
    Publication date: February 26, 2009
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Surya Narayana Devarakonda, Krishnamurthi Vyas, Sivakumar Reddy Bommareddy, Pratap Reddy Padi, Balaji Raghupathy
  • PREPARATION OF PALIPERIDONE
    Publication number: 20090048272
    Abstract: Processes for preparing paliperidone.
    Type: Application
    Filed: August 15, 2008
    Publication date: February 19, 2009
    Inventors: Pratap Reddy Padi, Satyanarayana Bollikonda, Surya Prabhakar Akundi, Praveen Cherukupally, Sashikanth Suthrapu, Saravanan Mohanarangam, Venkat Kiran Kandirelli, Malleswara Rao Chellu, Narasimha Rao Pagadala
  • Preparation of Montelukast
    Publication number: 20080214823
    Abstract: A process for preparing amorphous montelukast sodium comprises removing solvent from a solution comprising montelukast sodium using agitated thin film drying.
    Type: Application
    Filed: July 20, 2006
    Publication date: September 4, 2008
    Applicant: Dr. Reddy's Laboratories Ltd.
    Inventors: Pratap Reddy Padi, Satyanarayana Bollikonda, Alok Kumar Srivastava, Ravi Kumar Kasturi, Rajender Reddy Jinna, Narsimha Naidu Mopidevi