Patents by Inventor Venkata Lakshmi Narasimha Dammalapati

Venkata Lakshmi Narasimha Dammalapati 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).

  • SYNTHESIS OF PHOSPHATE DERIVATIVES
    Publication number: 20220402962
    Abstract: The present invention is a process for the preparation of certain 5?-phosphoramidate nucleotide diastereoisomers. The phosphoramidates include those useful in the treatment of cancer such as NUC-3373 (5-fluoro-2?-deoxyuridine-5?-O-[1-naphthyl(benzyloxy-L-alaninyl)]phosphate].
    Type: Application
    Filed: August 15, 2022
    Publication date: December 22, 2022
    Applicant: NuCana plc
    Inventors: Hugh Griffith, Gordon Kennovin, Venkata Lakshmi Narasimha Dammalapati, Mani Bushan Kotala
  • Process for the preparation of dolutegravir and pharmaceutically acceptable salts thereof
    Patent number: 10301321
    Abstract: The present invention relates to a novel process for the preparation of dolutegravir and pharmaceutically acceptable salts thereof using novel intermediates.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: May 28, 2019
    Assignee: LAURUS LABS LIMITED
    Inventors: Satyanarayana Chava, Seeta Rama Anjaneyulu Gorantla, Venkata Lakshmi Narasimha Dammalapati, Mani Bushan Kotala, Ravindra Aduri
  • NOVEL PROCESS FOR THE PREPARATION OF DOLUTEGRAVIR AND PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF
    Publication number: 20180155364
    Abstract: The present invention relates to a novel process for the preparation of dolutegravir and pharmaceutically acceptable salts thereof using novel intermediates.
    Type: Application
    Filed: November 10, 2017
    Publication date: June 7, 2018
    Inventors: Satyanarayana CHAVA, Seeta Rama Anjaneyulu GORANTLA, Venkata Lakshmi Narasimha DAMMALAPATI, Mani Bushan KOTALA, Ravindra ADURI
  • Process for the preparation of dolutegravir and pharmaceutically acceptable salts thereof
    Patent number: 9856271
    Abstract: The present invention relates to a novel process for the preparation of dolutegravir and pharmaceutically acceptable salts thereof using novel intermediates.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: January 2, 2018
    Assignee: LAURUS LABS LIMITED
    Inventors: Satyanarayana Chava, Seeta Rama Anjaneyulu Gorantla, Venkata Lakshmi Narasimha Dammalapati, Mani Bushan Kotala, Ravindra Aduri
  • NOVEL PROCESS FOR THE PREPARATION OF DOLUTEGRAVIR AND PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF
    Publication number: 20160333026
    Abstract: The present invention relates to a novel process for the preparation of dolutegravir and pharmaceutically acceptable salts thereof using novel intermediates.
    Type: Application
    Filed: January 20, 2015
    Publication date: November 17, 2016
    Applicant: Laurus Labs Private Limited
    Inventors: Satyanarayana CHAVA, Seeta Rama Anjaneyulu GORANTLA, Venkata Lakshmi Narasimha DAMMALAPATI, Mani Bushan Kotala, Ravindra ADURI
  • Process for the preparation of sunitinib and its acid addition salts thereof
    Patent number: 9206163
    Abstract: The present invention relates to an improved process for the preparation of Sunitinb. The process involves the activation of 5-((Z)-(5-fluoro-2-oxoindolin-3-ylidene) methyl)-2,4-dimethyl-1 H-pyrrole-3carboxylic acid to corresponding suitable carboxylic acid activating group. The present invention also relates to novel acid addition salts of Sunitinb and preparation thereof.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: December 8, 2015
    Assignee: Laurus Labs Private Ltd.
    Inventors: Sanjay Kumar Dehury, Venkata Lakshmi Narasimha Dammalapati, Venkata Sunil Kumar Indukuri, Seeta Ramanjaneyulu Gorantla
  • PROCESS FOR THE PERPARATION OF SUNITINIB AND ITS ACID ADDITION SALTS THEREOF
    Publication number: 20150025252
    Abstract: The present invention relates to an improved process for the preparation of Sunitinb. The process involves the activation of 5-((Z)-(5-fluoro-2-oxoindolin-3-ylidene) methyl)-2,4-dimethyl-1H-pyrrole-3carboxylic acid to corresponding suitable carboxylic acid activating group. The present invention also relates to novel acid addition salts of Sunitinb and preparation thereof.
    Type: Application
    Filed: March 22, 2013
    Publication date: January 22, 2015
    Inventors: Sanjay Kumar Dehury, Venkata Lakshmi Narasimha Dammalapati, Venkata Sunil Kumar Indukuri, Seeta Ramanjaneyulu Gorantla