Patents by Inventor Subba Rao Pula

Subba Rao Pula 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).

  • Modified process for the preparation of Ceritinib and amorphous form of Ceritinib
    Patent number: 10604505
    Abstract: The present invention is related to an improved process for the preparation of Ceritinib with high yield and high purity. The present process is cost effective and feasible in large scale production also. The present invention also related to a stable amorphous form of Ceritinib and its preparation. The present invention also relates to a process for the preparation of Crystalline form A of Ceritinib.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: March 31, 2020
    Assignee: Natco Pharma Limited
    Inventors: Durga Prasad Konakanchi, Subba Rao Pula, Muni Bhaskar Pallooru, Radha Rani Samatham, Ramakrishna Pilli, Lakshmana Viswa Venkata Pavan Kumar Maddula, Sandeep Karnam, Pulla Reddy Muddasani, Kali Satya Bhujanga Rao Adibhatla, Venkaiah Chowdary Nannapaneni
  • MODIFIED PROCESS FOR THE PREPARATION OF CERITINIB AND AMORPHOUS FORM OF CERITINIB
    Publication number: 20190047983
    Abstract: The present invention is related to an improved process for the preparation of Ceritinib with high yield and high purity. The present process is cost effective and feasible in large scale production also. The present invention also related to a stable amorphous form of Ceritinib and its preparation. The present invention also relates to a process for the preparation of Crystalline form A of Ceritinib.
    Type: Application
    Filed: March 9, 2017
    Publication date: February 14, 2019
    Inventors: Durga Prasad Konakanchi, Subba Rao Pula, Muni Bhaskar Pallooru, Radha Rani Samatham, Ramakrishna Pilli, Lakhmana Viswa Venjata Pavan Kumar Maddula, Sandeep Karnam, Pulla Reddy Muddasani, Kali Satya Bhujanga Rao Ibhatla, Venkaiah Chowdary Napaneni
  • 7-(morpholinyl)-2-(N-piperazinyl) methyl thieno [2, 3-C] pyridine derivatives as anticancer drugs
    Patent number: 10106554
    Abstract: The present invention relates to novel series of substituted 7-(morpholinyl)-2-(N-piperazinyl)-methyl thieno [2, 3-c] pyridines of the following structure of formula I. Where in R1, R2, R3 and R4 are defined.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: October 23, 2018
    Assignee: NATCO PHARMA LIMITED
    Inventors: Durga Prasad Konakanchi, Subba Rao Pula, Rama Krishna Pilli, Lakshmana Viswa Venkata Pavan Kumar Maddula, Srinivasa Krishna Murthy Konduri, Janaki Rama Rao Ravi, Naga Vasanta Srinivasu Vuppalapati, Sandeep Kumar Thoota, Pulla Reddy Muddasani, Kali Satya Bhujanga Rao Adibhatla, Venkaiah Chowdary Nannapaneni
  • 7-(MORPHOLINYL)-2-(N-PIPERAZINYL) METHYL THIENO [2, 3-C] PYRIDINE DERIVATIVES AS ANTICANCER DRUGS
    Publication number: 20170320891
    Abstract: The present invention relates to novel series of substituted 7-(morpholinyl)-2-(N-piperazinyl)-methyl thieno [2, 3-c] pyridines of the following structure of formula I. Where in R1, R2, R3 and R4 are defined.
    Type: Application
    Filed: December 11, 2014
    Publication date: November 9, 2017
    Inventors: Durga Prasad KONAKANCHI, Subba Rao PULA, Rama Krishna PILLI, Lakshmana Viswa Venkata Pavan Kumar MADDULA, Srinivasa Krishna Murthy KONDURI, Janaki Rama Rao RAVI, Naga Vasanta Srinivasu VUPPALAPATI, Sandeep Kumar THOOTA, Pulla Reddy MUDDASANI, Kali Satya Bhujanga Rao ADIBHATLA, Venkaiah Chowdary NANNAPANENI
  • Pyrazolo [3,4-D] pyrimidine derivatives as anti-cancer agents
    Patent number: 8349847
    Abstract: The invention relates to substituted pyrazolo[3,4-d]pyrimidine derivatives of the Formula-(I), or pharmaceutically-acceptable salts thereof, which possess anti-proliferative activity such as anti-cancer activity and are accordingly useful in methods of treatment of the human or animal body. The invention also relates to processes for the manufacture of substituted pyrazolo[3,4-d]pyrimidine derivatives, to pharmaceutical compositions containing the compound and to its use in the manufacture of medicaments for the production of an anti-proliferative effect in a warm-blooded animal such as man.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: January 8, 2013
    Inventors: Durga Prasad Konakanchi, Subba Rao Pula, Lakshmi Ananthaneni, Ramakrishna Pilli, Muddasani Pulla Reddy, Bhujanga rao Adibhatla Satya, Nannapaneni Venkaiah Chowdary
  • NOVEL 4-(TETRAZOL-5-YL)-QUINAZOLINE DERIVATIVES AS ANTI CANCER AGENT
    Publication number: 20120172380
    Abstract: The invention relates to substituted 4-(tetrazol-5-yl)-quinazoline derivatives of the formula-I, or pharmaceutically acceptable salts thereof, which possess anti-proliferative activity such as anti-cancer activity and are accordingly useful in methods of treatment of the human or animal body. The invention also relates to processes for the manufacture of substituted 4-(tetrazol-5-yl)-quinazoline derivatives, to pharmaceutical compositions containing the compound and to its use in the manufacture of medicaments for the production of an anti-proliferative effect in a warm-blooded animal such as man.
    Type: Application
    Filed: December 19, 2011
    Publication date: July 5, 2012
    Applicant: Natco Pharma Limited
    Inventors: Durga prasad Konakanchi, Subba Rao Pula, Lakshmi Ananthaneni, Pulla Reddy Muddasani, Kali Satya Bhujanga Rao Adibhatla, Venkaiah Chowdary Nannapaneni
  • 4-(tetrazol-5-yl)-quinazoline derivatives as anti-cancer agent
    Patent number: 8080558
    Abstract: The invention relates to substituted 4-(tetrazol-5-yl)-quinazoline derivatives of the formula-I, or pharmaceutically-acceptable salts thereof, which possess anti-proliferative activity such as anti-cancer activity and are accordingly useful in methods of treatment of the human or animal body. The invention also relates to processes for the manufacture of substituted 4-(tetrazol-5-yl)-quinazoline derivatives, to pharmaceutical compositions containing the compound and to its use in the manufacture of medicaments for the production of an anti-proliferative effect in a warm-blooded animal such as man.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: December 20, 2011
    Assignee: Natco Pharma Limited
    Inventors: Durga Prasad Konakanchi, Subba Rao Pula, Lakshmi Ananthaneni, Muddasani Pulla Reddy, Bhujanga Rao Adibhatla Kali Satya, Nannapaneni Venkaiah Chowdary
  • NOVEL PYRAZOLO [3, 4 -D] PYRIMIDINE DERIVATIVES AS ANTI-CANCER AGENTS
    Publication number: 20100298351
    Abstract: The invention relates to substituted pyrazolo[3,4-d]pyrimidine derivatives of the Formula-(I), or pharmaceutically-acceptable salts thereof, which possess anti-proliferative activity such as anti-cancer activity and are accordingly useful in methods of treatment of the human or animal body. The invention also relates to processes for the manufacture of substituted pyrazolo[3,4-d]pyrimidine derivatives, to pharmaceutical compositions containing the compound and to its use in the manufacture of medicaments for the production of an anti-proliferative effect in a warm-blooded animal such as man.
    Type: Application
    Filed: January 12, 2009
    Publication date: November 25, 2010
    Applicant: Natco Pharma Limited
    Inventors: Durga Prasad Konakanchi, Subba Rao Pula, Lakshmi Ananthaneni, Ramakrishna Pilli, Muddasani Pulla Reddy, Bhujanga Rao Adibhatla Satya, Nannapaneni Venkaiah Chowdary
  • NOVEL 4-(TETRAZOL-5-YL)-QUINAZOLINE DERIVATIVES AS ANTI CANCER AGENT
    Publication number: 20100261740
    Abstract: The invention relates to substituted 4-(tetrazol-5-yl)-quinazoline derivatives of the formula-I, or pharmaceutically-acceptable salts thereof, which possess anti-proliferative activity such as anti-cancer activity and are accordingly useful in methods of treatment of the human or animal body. The invention also relates to processes for the manufacture of substituted 4-(tetrazol-5-yl)-quinazoline derivatives, to pharmaceutical compositions containing the compound and to its use in the manufacture of medicaments for the production of an anti-proliferative effect in a warm-blooded animal such as man.
    Type: Application
    Filed: October 28, 2008
    Publication date: October 14, 2010
    Applicant: Natco Pharma Limited
    Inventors: Durga Prasad Konkanchi, Subba Rao Pula, Lakshmi Anathaneni, Muddasani Pulla Reddy, Bhujanga Rao Adibhatla Kali Satya, Nannapaneni Venkaiah Chowdary