Patents by Inventor Arjun Kumar Tummala

Arjun Kumar Tummala 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 polymorphic forms of nilotinib hydrochloride
    Patent number: 9926296
    Abstract: A process for preparing Nilotinib hydrochloride Form R5 and Form R6 comprises: step a) providing a solution of Nilotinib free base in acetic acid and optionally an organic solvent, step b) adding hydrochloric acid taken in an organic solvent to the solution of step a), then separating Nilotinib hydrochloride Form R5 (step c), and finally drying at about 100° C. to 150° C. to obtain Nilotinib hydrochloride Form R6.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: March 27, 2018
    Assignee: DR. REDDY'S LABORATORIES LIMITED
    Inventors: Arjun Kumar Tummala, Srinivas Rangineni
  • PROCESS FOR THE PREPARATION OF POLYMORPHIC FORMS OF NILOTINIB HYDROCHLORIDE
    Publication number: 20170240528
    Abstract: A process for preparing Nilotinib hydrochloride Form R5 and Form R6 comprises: step a) providing a solution of Nilotinib free base in acetic acid and optionally an organic solvent, step b) adding hydrochloric acid taken in an organic solvent to the solution of step a), then separating Nilotinib hydrochloride Form R5 (step c), and finally drying at about 100° C. to 150° C. to obtain Nilotinib hydrochloride Form R6.
    Type: Application
    Filed: August 7, 2015
    Publication date: August 24, 2017
    Inventors: Arjun Kumar TUMMALA, Srinivas RANGINENI
  • POLYMORPHIC FORMS OF SUVOROXANT
    Publication number: 20160272627
    Abstract: Present invention relates to crystalline form of suvorexant, amorphous form of suvorexant, amorphous solid dispersion of suvorexant, processes for their preparation and pharmaceutical dosage form thereof.
    Type: Application
    Filed: November 12, 2013
    Publication date: September 22, 2016
    Inventors: Vishweshwar PEDDY, Deepika PATHIVADA, Srinivas ENUGULA, Arjun Kumar TUMMALA
  • LORCASERIN HYDROCHLORIDE
    Publication number: 20140187538
    Abstract: The present invention relates to amorphous lorcaserin hydrochloride; amorphous solid dispersion comprising lorcaserin hydrochloride and one or more pharmaceutically acceptable carries; processes for preparation thereof; pharmaceutical compositions comprising amorphous lorcaserin hydrochloride and one or more pharmaceutically acceptable carries.
    Type: Application
    Filed: December 26, 2013
    Publication date: July 3, 2014
    Applicant: DR. REDDY'S LABORATORIES LTD.
    Inventors: Rajesham Boge, Arjun Kumar Tummala, Vishweshwar Peddy, Srinivasulu Rangineni, Vilas Hareshwar Dahanukar, Bandichhor Rakeshwar, Areveli Srinivas, Macharla Prabhakar, Varanasi Ganesh
  • PREPARATION OF NEBIVOLOL
    Publication number: 20110250454
    Abstract: Processes for the synthesis of pharmacologically active 2,2-iminobisethanol derivatives, e.g., 2H-1-benzopyran-2 methanol-?,??-iminobis(methylene)]bis-[6-fluoro-3,4-dihydro-[2R*[R*[R*(S*)]]]], and their pharmaceutically acceptable salts.
    Type: Application
    Filed: April 8, 2011
    Publication date: October 13, 2011
    Inventors: Pranab Haldar, China Malakondaiah Golla, Akula Swapna, Karri Vijaya Kumar, Suhas Jawlekar, Arjun Kumar Tummala, Deepali Patro, Sesha Reddy Yarraguntla, Srividya Ramakrishnan, Venkata Ramana Reddy Chimala
  • PROCESS FOR PREPARATION OF CELECOXIB CRYSTALLINE FORM
    Publication number: 20110213159
    Abstract: Celecoxib crystalline Form Ill substantially free of celecoxib crystalline Forms I and II and a process for its preparation.
    Type: Application
    Filed: February 28, 2011
    Publication date: September 1, 2011
    Inventors: Vamsee Krishna Muppidi, Srinivasulu Rangineni, Naga Kiran Duggirala, Srividya Ramakrishnan, Arjun Kumar Tummala
  • PREPARATION OF AMORPHOUS VALGANCICLOVIR HYDROCHLORIDE
    Publication number: 20100298564
    Abstract: The present application relates to processes for the preparation amorphous valganciclovir hydrochloride, comprising combining a solution of valganciclovir with an anti-solvent.
    Type: Application
    Filed: May 24, 2010
    Publication date: November 25, 2010
    Inventors: Venu Nalivela, Arjun Kumar Tummala
  • SOLIFENACIN COMPOSITIONS
    Publication number: 20100137358
    Abstract: Compositions and/or formulations comprising solifenacin or a salt thereof and processes for preparing the same. Certain compositions and formulations contain a stable amorphous form of solifenacin succinate.
    Type: Application
    Filed: April 11, 2008
    Publication date: June 3, 2010
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Pramod Kharwade, Movva Snehalatha, Atul Vishvanath Patil, Narayanan Badri Vishwanathan, Indu Bhushan, Venkata Nookaraju Sreedharala, Harshal Prabhakar Bhagwatwar, Surya Narayana Devarakonda, Ravi Kumar Komareddy, Azeezulla Baig Mohammed, Arjun Kumar Tummala, Jaydeepkumar Dahyabhai Lilakar, Srirami Reddy Kikkuru, Swarupa Dudipala
  • IMATINIB MESYLATE
    Publication number: 20100087444
    Abstract: There is provided a solid dispersion of imatinib mesylate that includes imatinib mesylate and a pharmaceutically acceptable carrier, wherein said carrier is a cellulose derivative. Also provided is a process for making a solid dispersion and a process for making imatinib.
    Type: Application
    Filed: March 12, 2008
    Publication date: April 8, 2010
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Surya Narayana Devarakonda, Minakshi Asnani, Munaswamy Sekhar Nariyam, Arjun Kumar Tummala, SR., Vamsi Krishna Mudapaka, Srinivas Benda, Subba Reddy Peddireddy, Balaji Raghupati, Raghavendracharyulu Venkata Palle, Subrahmanyam Raghupati Rama Vinjamuri, Vijay Bhailalbhai Patel
  • AMORPHOUS VALGANCICLOVIR HYDROCHLORIDE
    Publication number: 20100081809
    Abstract: The present application relates to amorphous forms of valganciclovir salts such as the hydrochloride and processes for their preparation.
    Type: Application
    Filed: October 28, 2009
    Publication date: April 1, 2010
    Applicants: DR. REDDY'S LABORATORIES LIMITED, DR. REDDY'S LABORATORIES, INC.
    Inventors: Surya Narayana Devarakonda, Sesha Reddy Yerraguntla, Venu Nalivela, Arjun Kumar Tummala
  • AMORPHOUS VALGANCICLOVIR HYDROCHLORIDE
    Publication number: 20090062538
    Abstract: The present application relates to amorphous forms of valganciclovir salts such as the hydrochloride and processes for their preparation.
    Type: Application
    Filed: September 5, 2008
    Publication date: March 5, 2009
    Inventors: Surya Narayana Devarakonda, Sesha Reddy Yerraguntla, Venu Nalivela, Arjun Kumar Tummala