Patents by Inventor Uma Naresh Babu KOTRA

Uma Naresh Babu KOTRA 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 Tipiracil hydrochloride and intermediates thereof
    Patent number: 11465988
    Abstract: The present invention provides a process for the preparation of Tipiracil HCl of Formula (I) and intermediate thereof with improved yields and purities.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: October 11, 2022
    Assignee: NATCO PHARMA LIMITED
    Inventors: Srinivasulu Sakkani, Uma Naresh Babu Kotra, Dharmender Ragidi, Buchappa Gongalla, Durga Prasad Konakanchi, Pulla Reddy Muddasani, Venkaiah Chowdary Nannapaneni
  • IMPROVED PROCESS FOR THE PREPARATION OF TIPIRACIL HYDROCHLORIDE AND INTERMEDIATES THEREOF
    Publication number: 20220056016
    Abstract: The present invention provides a process for the preparation of Tipiracil HCl of Formula (I) and intermediate thereof with improved yields and purities.
    Type: Application
    Filed: December 13, 2019
    Publication date: February 24, 2022
    Applicant: NATCO PHARMA LIMITED
    Inventors: Srinivasulu SAKKANI, Uma Naresh Babu KOTRA, Dharmender RAGIDI, Buchappa GONGALLA, Durga Prasad KONAKANCHI, Pulla Reddy MUDDASANI, Venkaiah Chowdary NANNAPANENI
  • Process for the preparation of pomalidomide and its purification
    Patent number: 11111228
    Abstract: The present invention is related to an improved process for the preparation of Pomalidomide with higher yields and high purity. Particularly the present invention relates to form A preparation of Pomalidomide and its purification. wherein the present process doesn't involve use of dioxane solvent and avoids higher temperatures.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: September 7, 2021
    Assignee: Natco Pharma Limited
    Inventors: Durga Prasad Konakanchi, Buchappa Gongalla, Dharmendher Ragidi, Uma Naresh Babu Kotra, Kali Satya Bhujanga Rao Adibhatla, Venkaiah Chowdary Nannapaneni
  • Process for the preparation of dasatinib polymorph
    Patent number: 10800771
    Abstract: The present invention is related to an improved process for the preparation of dasatinib anhydrous crystalline Neat form N-6 with high purity and high yield. The present invention also relates to purification of dasatinib crystalline Neat form N-6.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: October 13, 2020
    Assignee: NATCO PHARMA LIMITED
    Inventors: Durga Prasad Konakanchi, Buchappa Gongalla, Uma Naresh Babu Kotra, Srinivasulu Sakkani, Dharmender Ragidi, Kotayyababu Sikha, Venkaiah Chowdary Nannapaneni
  • AN IMPROVED PROCESS FOR THE PREPARATION OF DASATINIB POLYMORPH
    Publication number: 20190292177
    Abstract: The present invention is related to an improved process for the preparation of dasatinib anhydrous crystalline Neat form N-6 with high purity and high yield. The present invention also relates to purification of dasatinib crystalline Neat form N-6.
    Type: Application
    Filed: March 20, 2017
    Publication date: September 26, 2019
    Inventors: Durga Prasad KONAKANCHI, Buchappa GONGALLA, Uma Naresh Babu KOTRA, Srinivasulu SAKKANI, Dharmender RAGIDI, Kotayyababu SIKHA, Venkaiah Chowdary NANNAPANENI
  • PROCESS FOR THE PREPARATION OF POMALIDOMIDE AND ITS PURIFICATION
    Publication number: 20190233389
    Abstract: The present invention is related to an improved process for the preparation of Pomalidomide with higher yields and high purity. Particularly the present invention relates to form A preparation of Pomalidomide and its purification, wherein the present process doesn't involve use of dioxane solvent and avoids higher temperatures.
    Type: Application
    Filed: August 22, 2016
    Publication date: August 1, 2019
    Inventors: Durga Prasad Konakanchi, Buchappa Gongalla, Dharmendher Ragidi, Uma Naresh Babu Kotra, Kali Satya Bhujanga Rao Adibhatla, Venkaiah Chowdary Nannapaneni