Patents by Inventor Raghumitra ALLA

Raghumitra ALLA 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).

  • Cocrystal of varenicline and oxalic acid, pharmaceutical composition thereof, and methods of use thereof
    Patent number: 11040983
    Abstract: Provided is a cocrystal of varenicline and oxalic acid. In particular, provided is a cocrystal of varenicline and oxalic acid of formula (I) having a molar ratio of varenicline to oxalic acid of 1:1.5. Also provided is a process for preparing the cocrystal, a pharmaceutical composition containing the cocrystal and a method of using the cocrystal and pharmaceutical composition, such as for reducing nicotine addiction or tobacco use.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: June 22, 2021
    Assignee: ALMATICA PHARMA LLC
    Inventors: Siya Moghaddam, Venkat Reddy Alla, Raghumitra Alla, Srinivas Reddy Mallepalli
  • Process for the preparation of dipeptidyl peptidase-4 (DPP-4) enzyme inhibitor
    Patent number: 10450315
    Abstract: The present invention relates to a novel and improved process for the preparation of Sitagliptin of Formula (I) and its pharmaceutically acceptable salts. The present invention also relates to novel intermediates and process for the preparation of intermediates used in the preparation of Sitagliptin.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: October 22, 2019
    Assignee: Lee Pharma Limited
    Inventors: Venkat Reddy Alla, Raghumitra Alla, Srinivas Reddy Mallepalli, Suresh Babu Nandam, Madhukar Reddy Guda, Raja Reddy Alluri
  • NOVEL PROCESS FOR THE PREPARATION OF DIPEPTIDYL PEPTIDASE-4 (DPP-4) ENZYME INHIBITOR
    Publication number: 20180265513
    Abstract: The present invention relates to a novel and improved process for the preparation of Sitagliptin of Formula (I) and its pharmaceutically acceptable salts. The present invention also relates to novel intermediates and process for the preparation of intermediates used in the preparation of Sitagliptin.
    Type: Application
    Filed: February 20, 2015
    Publication date: September 20, 2018
    Inventors: Venkat Reddy Alla, Raghumitra Alla, Srinivas Reddy Mallepalli, Suresh Babu Nandam, Madhukar Reddy Guda, Raja Reddy Alluri
  • PROCESS FOR PREPARATION OF CLOPIDOGREL BISULPHATE FORM-1
    Publication number: 20070191609
    Abstract: Disclosed herein is a cost effective and industrially feasible process for the preparation of (+) Clopidogrel bisulphate. The present invention further discloses a novel method of precipitation of (+) Clopidogrel bisulphate Form I directly from solvent mix of methanol and acetone in presence of sulfuric acid at a temperature of 25-40° C.
    Type: Application
    Filed: February 16, 2006
    Publication date: August 16, 2007
    Applicant: LEE PHARMA LIMITED
    Inventors: Venkat Reddy ALLA, Kameshwara Rao VYAKARANAM, Aruna Kumari SIRIGIRI, Srinivas Reddy BODAPATI, Ranadheer Reddy BILLA, Saikrishna Reddy GUDIBANDI, Raghumitra ALLA