Patents by Inventor Venkata Panakala Rao Gogulapati

Venkata Panakala Rao Gogulapati 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 3?,7?-dihydroxy-6?-ethyl-5?-cholan-24-oic acid
    Patent number: 11434256
    Abstract: The present invention relates to an improved process for the preparation of 3?,7?-dihydroxy6?-ethyl-5?-cholan-24-oic acid compound of formula-1, represented by the following structural formula: Formula-1 The present invention also relates to process for the preparation of ethylene diamine and tertiary butyl amine salts of 3?,7?-dihydroxy6?-ethyl-5?-cholan-24-oic acid which are useful in the preparation of pure 3?,7?-dihydroxy6?-ethyl-5?-cholan-24-oic acid.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: September 6, 2022
    Assignee: MSN LABORATORIES PRIVATE LIMITED, R&D CENTER
    Inventors: Thirumalai Rajan Srinivasan, Eswaraiah Sajja, Venkata Panakala Rao Gogulapati, Ganapathi Chary Nagunuri
  • Process for the preparation of N-(4-(6,7-dimethoxyquinolin-4-yloxy)phenyl)-N?-(4-fluorophenyl)cyclopropane-1, 1-dicarboxamide, (2S)-hydroxybutanedioate and its polymorphs thereof
    Patent number: 11261160
    Abstract: The present invention also relates to process for the preparation of N-(4-(6,7-dimethoxy quinolin-4-yloxy)phenyl)-N?-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide (S)-malate compound of formula-1a and its polymorphs thereof, represented by the following structural:
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: March 1, 2022
    Assignee: MSN LABORATORIES PRIVATE LIMITED, R&D CENTER
    Inventors: Thirumalai Rajan Srinivasan, Eswaraiah Sajja, Venkata Panakala Rao Gogulapati, Rajeshwar Reddy Sagyam, Shyam Kiran Babu Gandham, Rajesham Boge
  • Polymorphs of 4-[3-chloro-4-(n?-cyclopropyl ureido)phenoxy] -7-methoxyquinoline-6-carboxamide, its salts and process for the preparation thereof
    Patent number: 11236050
    Abstract: The present invention relates to novel polymorphs of 4-[3-chloro-4-(N?-cyclopropyl ureido) phenoxy]-7-methoxyquinoline-6-carboxamide methanesulfonate represented by following structural formula-1a and process for preparation thereof. Further, the present invention relates to an improved process for the preparation of 4-[3-chloro-4-(N?-cyclopropylureido) phenoxy]-7-methoxyquinoline-6-carboxamide compound of formula-1 or its salts and its intermediates thereof.
    Type: Grant
    Filed: December 8, 2018
    Date of Patent: February 1, 2022
    Assignee: MSN LABORATORIES PRIVATE LIMITED, R&D CENTER
    Inventors: Thirumalai Rajan Srinivasan, Eswaraiah Sajja, Venkata Panakala Rao Gogulapati, Rajeshwar Reddy Sagyam, Pavan Kumar Reddy Bandla, Srinivasulu Rangineni
  • PROCESS FOR THE PREPARATION OF N-(4-(6,7-DIMETHOXYQUINOLIN-4-YLOXY) PHENYL)-N'-(4-FLUOROPHENYL)CYCLOPROPANE-1, 1-DICARBOXAMIDE, (2S)-HYDROXYBUTANEDIOATE AND ITS POLYMORPHS THEREOF
    Publication number: 20210403431
    Abstract: The present invention also relates to process for the preparation of N-(4-(6,7-dimethoxy quinolin-4-yloxy)phenyl)-N?-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide (S)-malate compound of formula-1a and its polymorphs thereof, represented by the following structural:
    Type: Application
    Filed: December 6, 2017
    Publication date: December 30, 2021
    Applicant: MSN LABORATORIES PRIVATE LIMITED, R&D CENTER
    Inventors: THIRUMALAI RAJAN SRINIVASAN, ESWARAIAH SAJJA, VENKATA PANAKALA RAO GOGULAPATI, RAJESHWAR REDDY SAGYAM, SHYAM KIRAN BABU GANDHAM, RAJESHAM BOGE
  • NOVEL POLYMORPHS OF 4-[3-CHLORO-4-(N'-CYCLOPROPYL UREIDO)PHENOXY]-7-METHOXYQUINOLINE-6-CARBOXAMIDE, ITS SALTS AND PROCESS FOR THE PREPARATION THEREOF
    Publication number: 20210188778
    Abstract: The present invention relates to novel polymorphs of 4-[3-chloro-4-(N?-cyclopropyl ureido) phenoxy]-7-methoxyquinoline-6-carboxamide methanesulfonate represented by following structural formula-1a and process for preparation thereof. Further, the present invention relates to an improved process for the preparation of 4-[3-chloro-4-(N?-cyclopropylureido) phenoxy]-7-methoxyquinoline-6-carboxamide compound of formula-1 or its salts and its intermediates thereof.
    Type: Application
    Filed: December 8, 2018
    Publication date: June 24, 2021
    Applicant: MSN LABORATORIES PRIVATE LIMITED, R&D CENTER
    Inventors: Thirumalai Rajan SRINIVASAN, Eswaraiah SAJJA, Venkata Panakala Rao GOGULAPATI, Rajeshwar Reddy SAGYAM, Pavan Kumar Reddy BANDLA, Srinivasulu RANGINENI
  • PROCESS FOR THE PREPARATION OF IRON (III) CARBOXYMALTOSE
    Publication number: 20210155651
    Abstract: Water soluble iron carbohydrate complex obtainable from an aqueous solution of iron (III) salt and an aqueous solution of the oxidation product of one or more maltrodextrins using an aqueous oxone solution at a pH-value within the alkaline range, where, when one maltodextrin is present, its dextrose equivalent lies between 5 and 20, and when a mixture of several maltodextrins is present, the dextrose equivalent of the mixture lies between 5 and 20 and the dextrose equivalent of each individual maltodextrin contained in the mixture lies between 2 and 40, process for its production and medicament for the treatment and prophylaxis of iron deficiency anaemia conditions.
    Type: Application
    Filed: April 4, 2019
    Publication date: May 27, 2021
    Applicant: MSN Laboratories Private Limited, R&D Center
    Inventors: Thirumalai Rajan SRINIVASAN, Eswaraiah SAJJA, Venkata Panakala Rao GOGULAPATI, Ganapathi Chary NAGUNURI, Mohammad Rafee SHAIK
  • Process for the preparation of D-glucitol, 1,5-anhydro-1-C-[4-chloro-3-[[4-[[(3S)-tetrahydro-3-furanyl] oxy]phenyl] methyl] phenyl]-, (1S) and its crystalline forms thereof
    Patent number: 10913762
    Abstract: The present invention relates to process for the preparation of D-glucitol, 1,5-anhydro-1-C-[4-chloro-3-[[4-[[(3S)-tetrahydro-3-furanyl]oxy]phenyl] methyl]phenyl]-, (1S) formula-1 and its crystalline forms thereof.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: February 9, 2021
    Assignee: MSN LABORATORIES PRIVATE LIMITED
    Inventors: Thirumalai Rajan Srinivasan, Eswaraiah Sajja, Venkata Panakala Rao Gogulapati, Rajeshwar Reddy Sagyam, Rajesham Boge, Mohammad Rafee Shaik
  • PROCESS FOR THE PREPARATION OF 3α,7α-DIHYDROXY6α-ETHYL-5β-CHOLAN-24-OIC ACID
    Publication number: 20200369713
    Abstract: The present invention relates to an improved process for the preparation of 3?,7?-dihydroxy6?-ethyl-?-cholan-24-oic acid compound of formula-1, represented by the following structural formula: Formula-1 The present invention also relates to process for the preparation of ethylene diamine and tertiary butyl amine salts of 3?,7?-dihydroxy6?-ethyl-5?-cholan-24-oic acid which are useful in the preparation of pure 3?,7?-dihydroxy6?-ethyl-5?-cholan-24-oic acid.
    Type: Application
    Filed: January 25, 2019
    Publication date: November 26, 2020
    Applicant: MSN LABORATORIES PRIVATE LIMITED, R&D CENTER
    Inventors: Thirumalai Rajan SRINIVASAN, Eswaraiah SAJJA, Venkata Panakala Rao GOGULAPATI, Ganapathi Chary NAGUNURI
  • Process for the preparation of N-[4-[(3-chloro-4-fluoro phenyl) amino]-7-[[(3s-tetrahydro-3-furanyl]oxy]-6-quinazolinyl]-4-(dimethyl amino)-(2E)-2-butenamide (2Z)-2-butenedioate (1:2) and its polymorphs thereof
    Patent number: 10550107
    Abstract: The present invention relates to an improved process for the preparation of N-[4-[(3-chloro-4-fluorophenyl)amino]-7-[[(3S)-tetrahydro-3-furanyl]oxy]-6-quinazolinyl]-4-(dimethyl amino)-(2E)-2-butenamide (2Z)-2-butenedioate (1:2) represented by the following structural formula:
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: February 4, 2020
    Assignee: MSN LABORATORIES PRIVATE LIMITED
    Inventors: Thirumalai Rajan Srinivasan, Eswaraiah Sajja, Venkata Panakala Rao Gogulapati, Rajesham Boge
  • A PROCESS FOR THE PREPARATION OF D-GLUCITOL, 1,5-ANHYDRO-1-C-[4-CHLORO-3-[[4- [[(3S)-TETRAHYDRO-3-FURANYL]OXY]PHENYL]METHYL]PHENYL]-, ( 1 S)
    Publication number: 20200017483
    Abstract: The present invention relates to a process for the preparation of D-glucitol, 1,5-anhydro-1-C-[4-chloro-3-[[4-[[(3S)-tetrahydro-3-furanyl)oxy)phenyl] methyl]phenyl]-, (IS) formula-1.
    Type: Application
    Filed: March 12, 2018
    Publication date: January 16, 2020
    Applicant: MSN LABORATORIES PRIVATE LIMITED, R&D CENTER
    Inventors: Thirumalai Rajan SRINIVASAN, Eswaraiah SAJJA, Venkata Panakala Rao GOGULAPATI, Rajeshwar Reddy SAGYAM, Mohammad Rafee SHAIK, Srinivasuslu RANGINENI
  • PROCESS FOR THE PREPARATION OF D-GLUCITOL, 1,5-ANHYDRO-1-C-[4-CHLORO-3-[[4-[[(3S)-TETRAHYDRO-3-FURANYL] OXY]PHENYL] METHYL] PHENYL]-, (1S) AND ITS CRYSTALLINE FORMS THEREOF
    Publication number: 20190040094
    Abstract: The present invention relates to process for the preparation of D-glucitol, 1,5-anhydro-1-C-[4-chloro-3-[[4-[[(3S)-tetrahydro-3-furanyl]oxy]phenyl] methyl]phenyl]-, (1S) formula-1 and its crystalline forms thereof.
    Type: Application
    Filed: January 27, 2017
    Publication date: February 7, 2019
    Inventors: Thirumalai Rajan SRINIVASAN, Eswaralah SAJJA, Venkata Panakala Rao GOGULAPATI, Rajeshwar Reddy SAGYAM, Rajesham BODGE, Mohammad Rafee SHAIK
  • CRYSTALLINE FORM OF ATORVASTATIN HEMI-CALCIUM
    Publication number: 20090240064
    Abstract: The present invention relates to a new crystalline form of Atorvastatin hemi-calcium and also relates to a process for preparation of the same by treating Atorvastatin hemi-calcium amorphous form or form-I or mixture of amorphous and crystalline forms with methanol.
    Type: Application
    Filed: February 20, 2007
    Publication date: September 24, 2009
    Inventors: Venkata Panakala Rao Gogulapati, Ramdas Chavakula, Mohan Bandari, Seeta Ramanjaneyulu Gorantla