Patents by Inventor Vinod Kumar Kansal

Vinod Kumar Kansal 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).

  • Processes for the preparation of sofosbuvir and intermediates thereof
    Patent number: 10676498
    Abstract: The present disclosure provides procedures and intermediates for the preparation of Sofosbuvir, comprising the step of reacting a compound of formula 2: wherein R1 and R2 can independently be hydrogen or halogen, provided that at least one of R1 and R2 is a halogen.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: June 9, 2020
    Assignee: Teva Pharmaceuticals International GmbH
    Inventors: Vinod Kumar Kansal, Dhirenkumar Natvarial Mistry, Srinivas Achanta, Sundaraselvan Ariyamuthu, Miteshgir Kanchangir Goswami, Venkata Subbarao Yazali
  • IMPROVED PROCESSES FOR THE PREPARATION OF SOFOSBUVIR AND INTERMEDIATES THEREOF
    Publication number: 20190218243
    Abstract: The present disclosure provides procedures and intermediates for the preparation of Sofosbuvir, comprising the step of reacting a compound of formula 2: wherein R1 and R2 can independently be hydrogen or halogen, provided that at least one of R1 and R2 is a halogen.
    Type: Application
    Filed: June 2, 2016
    Publication date: July 18, 2019
    Inventors: Vinod Kumar KANSAL, Dhirenkumar Natvarial MISTRY, Srinivas ACHANTA, Sundaraselvan ARIYAMUTHU, Miteshgir Kanchangir GOSWAMI, Venkata Subbarao YAZALI
  • Intermediates and processes for preparing Ticagrelor
    Patent number: 9056838
    Abstract: The present invention is related to new intermediates and processes for preparing Ticagrelor disclosed in this patent application.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: June 16, 2015
    Assignee: TEVA PHARMACEUTICAL INDUSTRIES LTD.
    Inventors: Vinod Kumar Kansal, Dhirenkumar Mistry, Sanjay Vasoya, Ghanshyam Pandey, Amit Taneja, Pramod Kadappa Shindey, Jiri Stohandl, Jaroslav Frantisek
  • NEW INTERMEDIATES AND PROCESSES FOR PREPARING TICAGRELOR
    Publication number: 20140094604
    Abstract: The present invention is related to new intermediates and processes for preparing Ticagrelor disclosed in this patent application.
    Type: Application
    Filed: April 6, 2012
    Publication date: April 3, 2014
    Applicant: TEVA PHARMACEUTICAL INDUSTRIES LTD.
    Inventors: Vinod Kumar Kansal, Dhirenkumar Mistry, Sanjay Vasoya, Ghanshyam Pandey, Amlt Taneja, Pramond Kadappa, Jiri Stohandl, Jaroslay Frantisek
  • Asymmetric synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid
    Patent number: 8212071
    Abstract: The invention encompasses processes for the synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid, (S)-Pregabalin, and intermediates of (S)-Pregabalin.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: July 3, 2012
    Assignee: Teva Pharmaceutical Industries Ltd.
    Inventors: Vinod Kumar Kansal, Brijnath P. Chaurasia, V. Govardhan Rao, Anand Prakash Tiwari
  • Solid state forms of varenicline salts and processes for preparation thereof
    Patent number: 8178537
    Abstract: Salts and crystalline forms of several salts of Varenicline, i.e., Varenicline sulfate: are provided, along with methods of preparing the solid states and processes for preparing Varenicline base from those Varenicline salts.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: May 15, 2012
    Assignee: Teva Pharmaceutical Industries Ltd.
    Inventors: Maytal Piran, Vinod Kumar Kansal, Suhail Ahmad, Vineet Kumar Tyagi, Ayyagari Subramanya Sharma
  • Synthesis of (S)-(+)-3-(aminomethyl)-5-methyl hexanoic acid
    Patent number: 8097754
    Abstract: Provided are syntheses of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid, (S)-Pregabalin via a chiral intermediate of the following formula 4 wherein Ar is a C6-10 aromatic group, R is a straight or branched C1-4 alkyl, ester, or carboxylic acid, and R1 is a straight or branched C1-5 alkyl, aralkyl, or substituted aralkyl.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: January 17, 2012
    Assignee: Teva Pharmaceutical Industries Ltd.
    Inventors: Vinod Kumar Kansal, Brijnath P. Chaurasia, Anand Prakash Tiwari, Shivaji Haribhau Shelke
  • Process for the synthesis of ramelteon and its intermediates
    Patent number: 8084630
    Abstract: The present invention provides processes and intermediates for the synthesis of ramelteon.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: December 27, 2011
    Assignee: Teva Pharmaceutical Industries Ltd.
    Inventors: Vinod Kumar Kansal, Dhirenkumar N. Mistry, Sanjay L. Vasoya, Michal Rafilovich, Elena Ben Moha-Lerman, Revital Lifshitz-Liron
  • Varenicline tosylate, an intermediate in the preparation process of varenicline L-tartrate
    Patent number: 8039620
    Abstract: Crystalline forms of Varenicline Tosylate: are provided, along with processes for preparing those crystalline forms of Varenicline Tosylate, and processes for obtaining high purity Varenicline base using Varenicline Tosylate.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: October 18, 2011
    Assignee: Teva Pharmaceutical Industries Ltd.
    Inventors: Suhail Ahmad, Vinod Kumar Kansal, Maytal Piran, Zvi Harel
  • Asymmetric synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid
    Patent number: 7973196
    Abstract: The invention encompasses processes for the synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid, (S)-Pregabalin, and intermediates of (S)-Pregabalin.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: July 5, 2011
    Assignee: Teva Pharmaceutical Industries Ltd.
    Inventors: Vinod Kumar Kansal, Brijnath P. Chaurasia, V. Govardhan Rao, Anand Prakash Tiwari
  • Process for preparing intermediates of HMG-CoA reductase inhibitors
    Patent number: 7964748
    Abstract: The present invention relates to intermediates of rosuvastatin and processes for the production thereof.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: June 21, 2011
    Assignee: Teva Pharmaceutical Industries, Ltd.
    Inventors: Vinod Kumar Kansal, Brijnath P. Chaurasia, Hitesh K. Patel, Vrajlal Gothalia, Hiren Gandhi
  • Asymmetric synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid
    Patent number: 7960583
    Abstract: The invention encompasses processes for the synthesis of (S)-(+)-3-(aminomethyl) -5-methylhexanoic acid, (S)-Pregabalin, and intermediates of (S)-Pregabalin.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: June 14, 2011
    Assignee: Teva Pharmaceutical Industries Ltd.
    Inventors: Vinod Kumar Kansal, Brijnath P. Chaurasia, V. Govardhan Rao, Anand Prakash Tiwari
  • Asymmetric synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid
    Patent number: 7923575
    Abstract: The invention encompasses processes for the synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid, (S)-Pregabalin, and intermediates of (S)-Pregabalin.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: April 12, 2011
    Assignee: Teva Pharmaceutical Industries Limited
    Inventors: Vinod Kumar Kansal, Brijnath P. Chaurasia, V. Govardhan Rao, Anand Prakash Tiwari
  • Purification of rosuvatatin intermediate by thin film evaporation and chemical method
    Patent number: 7884226
    Abstract: Provided are processes for the purification of a pure rosuvastatin intermediate by thin film evaporation and chemical method, and conversion of the intermediate to rosuvastatin or salts thereof.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: February 8, 2011
    Assignee: Teva Pharmaceutical Industries, Ltd.
    Inventors: Tamar Nidam, Omer Malachi, Irena Veinberg, Valerie Niddam-Hildesheim, Vinod Kumar Kansal, Harish Ranjan, Appu Ekambaram Ponnuswamy, Sunil Rokad, Surat Kiran, Debashish Das
  • SOLID STATES FORMS OF VARENICLINE SALTS AND PROCESSES FOR PREPARATION THEREOF
    Publication number: 20100324055
    Abstract: Salts and crystalline forms of several salts of Varenicline, i.e., Varenicline sulfate, Varenicline mesylate, and Varenicline fumarate, methods of preparing the solid states of Varenicline sulfate, Varenicline mesylate, and Varenicline fumarate, and processes for preparing Varenicline base from those Varenicline salts are provided.
    Type: Application
    Filed: June 22, 2010
    Publication date: December 23, 2010
    Inventors: Maytal PIRAN, Vinod Kumar Kansal, Suhail Ahmad, Vineet Kumar Tyagi, Ayyagari Subramanya Sharma
  • NOVEL ASYMMETRIC SYNTHESIS OF (S)-(+)-3-(AMINOMETHYL)-5-METHYLHEXANOIC ACID
    Publication number: 20100324307
    Abstract: The invention encompasses processes for the synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid, (S)-Pregabalin, and intermediates of (S)-Pregabalin.
    Type: Application
    Filed: August 30, 2010
    Publication date: December 23, 2010
    Inventors: Vinod Kumar KANSAL, Brijnath P. Chaurasia, V. Govardhan Rao, Anand Prakash Tiwari
  • Asymmetric synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid
    Patent number: 7851651
    Abstract: (S)-Pregabalin, which has the chemical name (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid, is useful in anticonvulsant therapy, primarily due a mechanism that serves to promote the production of gamma-amino butyric acid, an inhibitory neurotransmitter. The invention encompasses new processes for synthesizing (S)-Pregabalin. The invention also comprises certain new compounds that are useful synthetic intermediates in the synthesis of (S)-Pregabalin.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: December 14, 2010
    Assignee: Teva Pharmaceutical Industries Ltd.
    Inventors: Vinod Kumar Kansal, Brijnath P. Chaurasia, V. Govardhan Rao, Anand Prakash Tiwari
  • System for synthesis of device forming monomers
    Patent number: 7745564
    Abstract: Disclosed in embodiments herein is a method of synthesizing device forming monomers using N-(Vinyloxycarbonyloxy)succinimide.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: June 29, 2010
    Assignee: Bausch & Lomb Incorporated
    Inventors: Mahendra Nandu, Gary D. Friends, Mary Lou Friends, legal representative, David E. Seelye, Vinod Kumar Kansal, C. C. Shah, Dharmesh Balvantrai Mistry
  • PROCESS FOR PREPARING INTERMEDIATES OF HMG-CoA REDUCTASE INHIBITORS
    Publication number: 20100160663
    Abstract: The present invention relates to intermediates of rosuvastatin and processes for the production thereof.
    Type: Application
    Filed: February 4, 2010
    Publication date: June 24, 2010
    Inventors: Vinod Kumar KANSAL, Brijnath P. CHAURASIA, Hitesh K. PATEL, Vrajlal GOTHALIA, Hiren GANDHI
  • PROCESS FOR THE SYNTHESIS OF RAMELTEON AND ITS INTERMEDIATES
    Publication number: 20100152468
    Abstract: The present invention provides processes and intermediates for the synthesis of ramelteon.
    Type: Application
    Filed: October 16, 2009
    Publication date: June 17, 2010
    Inventors: Vinod Kumar Kansal, Dhirenkumar N. Mistry, Sanjay L. Vasoya, Arpan M. Jadav, Pratish Dadhaniya, Jitendra Nalawade