Patents by Inventor Nannapaneni Venkaiah Chowdary

Nannapaneni Venkaiah Chowdary 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).

  • Patent number: 11845811
    Abstract: The present invention provides an improved process for the preparation of Sugammadex sodium of formula (I) having more than 98.5% purity along with less than 1.0% monohydroxy Sugammadex sodium and less than 0.15% any other known or unknown impurities by HPLC.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: December 19, 2023
    Assignee: NATCO PHARMA LIMITED
    Inventors: Vanga Prabhakar, Baddula Saidulu, Kotte Rajashekar, Peddi Rajasekhara Reddy, Vuppalapati Naga Vasanta Srinivasu, Konduri Srinivasa Krishna Murthy, Budideti Shankar Reddy, Muddasani Pulla Reddy, Nannapaneni Venkaiah Chowdary
  • Patent number: 11730753
    Abstract: The present invention relates to pharmaceutical compositions comprising trifluridine and tipiracil hydrochloride. More particularly, the present invention relates to a tablet composition comprising trifluridine, tipiracil hydrochloride and one or more pharmaceutically acceptable excipients and process for preparing such compositions.
    Type: Grant
    Filed: March 2, 2019
    Date of Patent: August 22, 2023
    Assignee: Natco Pharma Limited
    Inventors: Tripuraneni Rama Swamy Chowdary, Bhavanasi Krishna Murthy, Yedluri Siddhartha, Bhat Pavan, Nannapaneni Venkaiah Chowdary
  • Patent number: 11576917
    Abstract: The present invention relates to pharmaceutical compositions comprising Ibrutinib. More particularly, the present invention relates to a tablet composition comprising Ibrutinib and one or more pharmaceutically acceptable excipients and process for preparing such compositions.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: February 14, 2023
    Assignee: NATCO PHARMA LIMITED
    Inventors: Vattikuti Satyanarayana, Bhavanasi Krishna Murthy, Yalamanchalli Naveen Krishna, Bhat Pavan, Nannapaneni Venkaiah Chowdary
  • Patent number: 11498902
    Abstract: The present invention relates to an improved process for the preparation of N-(4-(6,7-dimethoxyquinolin-4-yloxy)phenyl)-N?-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide compound of formula-1 which is represented by the following structural formula:
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: November 15, 2022
    Assignee: NATCO PHARMA LIMITED
    Inventors: Kompella Amala, Gampa Venugopala Krishna, Annadasu Ankamanayudu, Ganganamoni Srinivasulu, Konakanchi Durga Prasad, Muddasani Pulla Reddy, Nannapaneni Venkaiah Chowdary
  • Patent number: 11452722
    Abstract: The present invention relates to pharmaceutical compositions comprising Lenalidomide. More particularly, the present invention relates to a stable composition comprising anhydrous Lenalidomide Form I and one or more pharmaceutically acceptable excipients and process for preparing such compositions.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: September 27, 2022
    Assignee: NATCO PHARMA LIMITED
    Inventors: Vattikuti Satyanarayana, Bhavanasi Krishna Murthy, Vemuri Venkata Suresh Babu, Bhat Pavan, Nannapaneni Venkaiah Chowdary
  • Publication number: 20210355248
    Abstract: The present invention provides an improved process for the preparation of Sugammadex sodium of formula (I) having more than 98.5% purity along with less than 1.0% monohydroxy Sugammadex sodium and less than 0.15% any other known or unknown impurities by HPLC.
    Type: Application
    Filed: September 18, 2019
    Publication date: November 18, 2021
    Inventors: Vanga PRABHAKAR, Baddula SAIDULU, Kotte RAJASHEKAR, Peddi RAJASEKHARA REDDY, Vuppalapati NAGA VASANTA SRINIVASU, Konduri SRINIVASA KRISHNA MURTHY, Budideti SHANKAR REDDY, Muddasani PULLA REDDY, Nannapaneni VENKAIAH CHOWDARY
  • Publication number: 20210196698
    Abstract: The present invention relates to pharmaceutical compositions comprising Lenalidomide. More particularly, the present invention relates to a stable composition comprising anhydrous Lenalidomide Form I and one or more pharmaceutically acceptable excipients and process for preparing such compositions.
    Type: Application
    Filed: January 7, 2019
    Publication date: July 1, 2021
    Inventors: Vattikuti SATYANARAYANA, Bhavanasi KRISHNA MURTHY, Vemuri VENKATA SURESH BABU, Bhat PAVAN, Nannapaneni VENKAIAH CHOWDARY
  • Publication number: 20210188776
    Abstract: The present invention relates to an improved process for the preparation of N-(4-(6,7-dimethoxyquinolin-4-yloxy)phenyl)-N?-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide compound of formula-1 which is represented by the following structural formula:
    Type: Application
    Filed: June 4, 2019
    Publication date: June 24, 2021
    Inventors: Kompella AMALA, Gampa VENUGOPALA KRISHNA, Annadasu ANKAMANAYUDU, Ganganamoni SRINIVASULU, Konakanchi DURGA PRASAD, Muddasani PULLA REDDY, Nannapaneni VENKAIAH CHOWDARY
  • Publication number: 20210060019
    Abstract: The present invention relates to pharmaceutical compositions comprising Ibrutinib. More particularly, the present invention relates to a tablet composition comprising Ibrutinib and one or more pharmaceutically acceptable excipients and process for preparing such compositions.
    Type: Application
    Filed: January 11, 2019
    Publication date: March 4, 2021
    Inventors: Vattikuti SATYANARAYANA, Bhavanasi KRISHNA MURTHY, Yalamanchalli NAVEEN KRISHNA, Bhat PAVAN, Nannapaneni VENKAIAH CHOWDARY
  • Publication number: 20200405741
    Abstract: The present invention relates to pharmaceutical compositions comprising trifluridine and tipiracil hydrochloride. More particularly, the present invention relates to a tablet composition comprising trifluridine, tipiracil hydrochloride and one or more pharmaceutically acceptable excipients and process for preparing such compositions.
    Type: Application
    Filed: March 2, 2019
    Publication date: December 31, 2020
    Inventors: Tripuraneni RAMA SWAMY CHOWDARY, Bhavanasi KRISHNA MURTHY, Yedluri SIDDHARTHA, Bhat PAVAN, Nannapaneni VENKAIAH CHOWDARY
  • Publication number: 20190201408
    Abstract: Methods of inhibiting a receptor tyrosine kinase in a subject in need thereof. Methods of inhibiting the growth of a tumor cell in a subject in need thereof. Methods of treating pancreatic cancer in a subject in need of treatment for pancreatic cancer. Methods of treating HER2 positive breast cancer in a subject in need of treatment for HER2 positive breast cancer. Methods of treating drug resistant non-small cell lung cancer in a subject in need of treatment for drug resistant non-small cell lung cancer. Each of these methods can include administering to the subject an effective amount of a compound of formula (I) or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Inventors: Bhujanga rao ADIBHATLA KALI SATYA, Ramanadham JYOTHI PRASAD, Bollepalli NAGESHWARA RAO, Nannapaneni VENKAIAH CHOWDARY
  • Publication number: 20170079983
    Abstract: Methods of inhibiting a receptor tyrosine kinase in a subject in need thereof. Methods of inhibiting the growth of a tumor cell in a subject in need thereof. Methods of treating pancreatic cancer in a subject in need of treatment for pancreatic cancer. Methods of treating HER2 positive breast cancer in a subject in need of treatment for HER2 positive breast cancer. Methods of treating drug resistant non-small cell lung cancer in a subject in need of treatment for drug resistant non-small cell lung cancer. Each of these methods can include administering to the subject an effective amount of a compound of formula (I) or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: October 5, 2016
    Publication date: March 23, 2017
    Inventors: Bhujanga rao ADIBHATLA KALI SATYA, Ramanadham JYOTHI PRASAD, Bollepalli NAGESHWARA RAO, Nannapaneni VENKAIAH CHOWDARY
  • Patent number: 9481655
    Abstract: Methods of inhibiting a receptor tyrosine kinase in a subject in need thereof. Methods of inhibiting the growth of a tumor cell in a subject in need thereof. Methods of treating pancreatic cancer in a subject in need of treatment for pancreatic cancer. Methods of treating HER2 positive breast cancer in a subject in need of treatment for HER2 positive breast cancer. Methods of treating drug resistant non-small cell lung cancer in a subject in need of treatment for drug resistant non-small cell lung cancer. Each of these methods can include administering to the subject an effective amount of a compound of formula (I) or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: November 1, 2016
    Assignee: NATCO PHARMA LIMITED
    Inventors: Bhujanga rao Adibhatla Kali Satya, Ramanadham Jyothi Prasad, Bollepalli Nageshwara Rao, Nannapaneni Venkaiah Chowdary
  • Patent number: 9050341
    Abstract: Methods employing and uses of a compound of formula (I) in inhibiting the growth of a tumor cell in a subject in need thereof. Methods employing and uses of a compound of formula (I) in treating pancreatic cancer in a subject in need of treatment for pancreatic cancer. Methods employing and uses of a compound of formula (I) in treating HER-2 positive breast cancer in a subject in need of treatment for HER-2 positive breast cancer. Methods employing and uses of a compound of formula (I) in treating drug resistant non-small cell lung cancer in a subject in need of treatment for drug resistant non-small cell lung cancer. Each of these methods can include administering to the subject an effective amount of a compound of formula (I) or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: June 9, 2015
    Assignee: NATCO PHARMA LIMITED
    Inventors: Bhujanga rao Abidhatla Kali Satya, Ramanadham Jyothi Prasad, Bollepalli Nageshwara Rao, Nannapaneni Venkaiah Chowdary
  • Publication number: 20150141421
    Abstract: Compounds of formula (I) in which: R1 is: and R2 is —CH3 or —CH2CH3; or a pharmaceutically acceptable salt thereof. Pharmaceutical compositions including the compound of formula (I) and a pharmaceutically acceptable carrier. Processes for preparing the compound of formula (I). Methods of inhibiting a receptor tyrosine kinase in a subject in need thereof. Methods of inhibiting the growth of a tumor cell in a subject in need thereof. Methods of treating pancreatic cancer in a subject in need of treatment for pancreatic cancer. Methods of treating HER2 positive breast cancer in a subject in need of treatment for HER2 positive breast cancer. Methods of treating drug resistant non-small cell lung cancer in a subject in need of treatment for drug resistant non-small cell lung cancer. Each of these methods can include administering to the subject an effective amount of a compound of formula (I) or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: December 26, 2014
    Publication date: May 21, 2015
    Inventors: Bhujanga rao ADIBHATLA KALI SATYA, Ramanadham JYOTHI PRASAD, Bollepalli NAGESHWARA RAO, Nannapaneni VENKAIAH CHOWDARY
  • Patent number: 8993722
    Abstract: This invention relates to a convenient and improved process for preparation of glatiramer acetate (copolymer-1) of pharmaceutical grade. The process involves polymerizing N-carboxyanhydrides of tyrosine, alanine, y-benzyl glutamate and ?-N-trifluoroacetyllysine in dioxane with diethylamine as initiator to afford protected copolymer-1. Treatment with hydrogen bromide in acetic acid at 35° C. for 3-5 h cleaves benzyl group to produce trifluoroacetyl copolymer-1. The trifluoroacetyl copolymer-1 is washed with an organic solvent to remove reactive benzyl bromide generated during debenzylation. Deprotection with aqueous piperidine, followed by dialysis offers glatiramer acetate (copolymer-1) of Molecular weight 5000-9000 daltons.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: March 31, 2015
    Assignee: Natco Pharma Limited
    Inventors: Satyanarayana Kota, Venkateswarlu Tallapaneni, Bhujanga rao Adibhatla Kali Satya, Nannapaneni Venkaiah Chowdary
  • Patent number: 8921362
    Abstract: Compounds of formula (I) in which: R1 is: R2 is —CH3 or —CH2CH3; or a pharmaceutically acceptable salt thereof. Pharmaceutical compositions including the compound of formula (I) and a pharmaceutically acceptable carrier. Processes for preparing the compound of formula (I). Methods of inhibiting a receptor tyrosine kinase in a subject in need thereof. Methods of inhibiting the growth of a tumor cell in a subject in need thereof. Methods of treating pancreatic cancer in a subject in need of treatment for pancreatic cancer. Methods of treating HER2 positive breast cancer in a subject in need of treatment for HER2 positive breast cancer. Methods of treating drug resistant non-small cell lung cancer in a subject in need of treatment for drug resistant non-small cell lung cancer. Each of these methods can include administering to the subject an effective amount of a compound of formula (I) or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: December 30, 2014
    Assignee: Natco Pharma Limited
    Inventors: Bhujanga rao Adibhatla Kali Satya, Ramanadham Jyothi Prasad, Bollepalli Nageshwara Rao, Nannapaneni Venkaiah Chowdary
  • Patent number: 8748602
    Abstract: The present invention relates to three novel crystalline forms of Erlotinib hydrochloride and method of preparation thereof. Erlotinib hydrochloride is N-(3-ethynylphenyl)-6,7-bis(2 -methoxy ethoxy)-4-quinazolinamine hydrochloride of formula-(I): The present invention provides stable novel crystalline forms of Erlotinib hydrochloride designated as Form-M, Form-N and Form-P, and processes for the preparation of the same. Erlotinib hydrochloride can be used as medicament for the treatment of hyperproliferative disorders, such as cancers, in humans.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: June 10, 2014
    Assignee: Natco Pharma Limited
    Inventors: Ramanadham Jyothi Prasad, Bhujanga Rao Adibhatla Kali Satya, Nannapaneni Venkaiah Chowdary
  • Patent number: 8664389
    Abstract: The present invention relates to an improved and novel process for the preparation of high purity crystalline base of Lapatinib of formula-(1) having chemical name N-{3-chloro-4-[(3-fluorobenzyloxy]phenyl}-6-[5-({[2-(methanesulfonyl)ethyl]amino}methyl]-2-furyl]-4-quin-azolinamine and its pharmaceutically acceptable salts. The present invention further relates to intermediates according to formula (8) and formula (9) used in this process.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: March 4, 2014
    Assignee: Natco Pharma Limited
    Inventors: Ramanadham Jyothi Prasad, Bhujanga Rao Adibhatla Kali Satya, Nannapaneni Venkaiah Chowdary
  • Patent number: 8501962
    Abstract: The present invention relates to an improved process for the preparation of N-[2-(diethylamino)ethyl]-5-[(Z)-(5-fluoro-1,2-dihydro-2-oxo-3H-indol-3-ylidine)methyl]-2,4-dimethyl-1H-pyrrole-3-carboxamide—Sunitinib base of formula (I) and its pharmaceutically acceptable malate salt of formula (I(a)).
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: August 6, 2013
    Assignee: Natco Pharma Limited
    Inventors: Srinivasa Krishna Murthy Konduri, Bhujanga Rao Adibhatla Kali Satya, Nannapaneni Venkaiah Chowdary