Patents by Inventor Ramesh Chakka

Ramesh Chakka 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).

  • AMORPHOUS FORMS OF SELINEXOR AND PROCESS FOR THEIR PREPARATION
    Publication number: 20210221795
    Abstract: Aspects of the present application relate to solid forms of Selinexor, processes for their preparation and pharmaceutical compositions thereof. Specific aspects relate to crystalline and amorphous forms of Selinexor.
    Type: Application
    Filed: March 1, 2021
    Publication date: July 22, 2021
    Inventors: Ramanaiah CHENNURU, Satarupa BHATTACHARJEE, Srinivas ORUGANTI, Vishnu Vardhana Vema Reddy EDA, Ramesh CHAKKA, Vishweshwar PEDDY, Srividya RAMAKRISHNAN, Vamsi Krishna MUDAPAKA
  • Solid forms of Selinexor and process for their preparation
    Patent number: 11034675
    Abstract: Aspects of the present application relate to solid forms of Selinexor, processes for their preparation and pharmaceutical compositions thereof. Specific aspects relate to crystalline and amorphous forms of Selinexor.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: June 15, 2021
    Assignee: DR. REDDY'S LABORATORIES LIMITED
    Inventors: Ramanaiah Chennuru, Satarupa Bhattacharjee, Srinivas Oruganti, Vishnu Vardhana Verna Reddy Eda, Ramesh Chakka, Vishweshwar Peddy, Srividya Ramakrishnan, Vamsi Krishna Mudapaka
  • PROCESSES FOR PREPARATION OF LIFITEGRAST AND INTERMEDIATES THEREOF
    Publication number: 20200369652
    Abstract: The present invention provides process for preparation of lifitegrast, amine salts of lifitegrast, process for preparation of amine salts of lifitegrast and their use in purification of lifitegrast, and also provided are process for preparation of amorphous lifitegrast and pharmaceutical compositions comprising lifitegrast prepared by the processes of the present invention.
    Type: Application
    Filed: August 2, 2018
    Publication date: November 26, 2020
    Inventors: Srinivas ACHANTA, Ramesh CHAKKA, Vilas Hareshwar DAHANUKAR, Elati Ravi Rama CHANDRASEKHAR, Srinivasa Reddy BHIMAVARAPU, Mahendar MADARABOINA
  • SOLID FORMS OF VENETOCLAX AND PROCESSES FOR THE PREPARATION OF VENETOCLAX
    Publication number: 20190185471
    Abstract: Aspects of the present application relate to solid forms of Venetoclax and preparative processes thereof. Specific aspects relate to an amorphous form of Venetoclax, its solid dispersion and crystalline forms of Venetoclax or salts thereof. Further aspects of the present application relate to processes for the preparation of Venetoclax.
    Type: Application
    Filed: June 8, 2017
    Publication date: June 20, 2019
    Applicant: Dr. Reddy's Laboratories Limited
    Inventors: Subba Reddy PEDDI REDDY, Mohan Kumar KOTTUR, Ramprasad JURUPULA, Mohammed Azeezulla BAIG, Ramesh CHAKKA, Rajesh THI PPARABOINA, Vishweshwar PEDDY, Pallavi RAO, Srinivas ORUGANTI, Vilas Hareshwar DAHANUKAR
  • SOLID FORMS OF SELINEXOR AND PROCESS FOR THEIR PREPARATION
    Publication number: 20190023693
    Abstract: Aspects of the present application relate to solid forms of Selinexor, processes for their preparation and pharmaceutical compositions thereof. Specific aspects relate to crystalline and amorphous forms of Selinexor.
    Type: Application
    Filed: January 6, 2017
    Publication date: January 24, 2019
    Inventors: Ramanaiah CHENNURU, Satarupa BHATTACHARJEE, Srinivas ORUGANTI, Vishnu Vardhana Vema Reddy EDA, Ramesh CHAKKA, Vishweshwar PEDDY, Srividya RAMAKRISHNAN, Vamsi Krishna MUDAPAKA
  • CRYSTALLINE FORMS OF NEVIRAPINE
    Publication number: 20060183738
    Abstract: The present invention relates to novel crystalline forms of 11-cyclopropyl-5, 11-dihydro-4-methyl-6H-dipyrido[3,2-b: 2?, 3?-e][1,4]diazepin-6-one, generically kiown as Nevirapine, and processes for making thereof. More specifically, the present invention provides novel crystalline Forrn-II and Form-III of Nevirapine.
    Type: Application
    Filed: March 27, 2006
    Publication date: August 17, 2006
    Inventors: Buchi Reguri, Ramesh Chakka
  • Process for the preparation of pure 3-[2-[4-(6-fluoro-1, 2-benzisoxazol-3-yl)-1-piperidinyl]-ethyl]-6,7,8,9-tetrahydro-2-methyl-4H-pyrido [1,2-a] pyrimidin-4-one
    Publication number: 20060004199
    Abstract: A process for the preparation of 3-[2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]-ethyl]-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one, which is known as Risperidone of Formula (I). Risperidone of Formula (I) is represented by the following structure.
    Type: Application
    Filed: July 1, 2004
    Publication date: January 5, 2006
    Inventors: Buchi Reddy, Sunkari Sudhakar, Ramesh Chakka, Tamma Reddy, Kandirelli Kumar
  • Novel crystalline polymorph form-vi of olanzapine and a process for preparation thereof
    Publication number: 20050153954
    Abstract: The present invention relates to a novel crystalline form of 2-methyl-4-4-methyl-piperazinyl)-10H-thieno[2,3-b][1,5] benzodiazepine and to a method of preparation thereof. Methyl-4-(4-methyl-1-piperazinyl)-10H-thieno[2,3-b][1,5]benzodiazepine (Olanzapine) is represented by Structure (I).
    Type: Application
    Filed: April 22, 2003
    Publication date: July 14, 2005
    Inventors: Buchi Reguri, Ramesh Chakka
  • Novel crystalline forms of 11-cyclopropyl-5,11-dihydro-4-methyl-6H-dipyrido [3,2-b: 2',3'-e][1,4] diazepin-6-one (nevirapine)
    Publication number: 20050059653
    Abstract: The present invention relates to novel crystalline forms of 11-cyclopropyl1-5, 11-dihydro-4-methyl-6H-dipyrido[3,2-b: 2?, 3?-e][1,4]diazepin-6-one, generically known as Nevirapine, and processes for making thereof. More specifically, the present invention provides novel crystalline Form-II and Form-III of Nevirapine.
    Type: Application
    Filed: June 7, 2004
    Publication date: March 17, 2005
    Inventors: Buchi Reguri, Ramesh Chakka
  • Process for preparation of hydrates of olanzapine and their conversion into crystalline forms of olanzapine
    Publication number: 20040067936
    Abstract: The present invention relates to a method for the preparation of hydrates of 2-methyl-4-(4-methyl-1-piperazinyl)-10H-thieno [2,3-b] [1,5] benzodiazepine (hereinafter referred to as Olanzapine). The present invention also relates to a process for conversion of these hydrates into a pure crystalline form of olanzapine referred to as form-I. The present invention also relates to a method of converting Olanzapine Form-2 to Form-1.
    Type: Application
    Filed: November 20, 2003
    Publication date: April 8, 2004
    Inventors: Buchi Reddy Reguri, Ramesh Chakka, Robert Koprowski