Patents by Inventor Vinod Singh Tomar

Vinod Singh Tomar 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 preparing Alectinib or a pharmaceutically acceptable salt thereof
    Patent number: 11465999
    Abstract: The present invention relates to a process for preparing the Alectinib or a pharmaceutically acceptable salt thereof using lesser reaction steps and also eliminating expensive and time-consuming column chromatography. The invention also relates to novel polymorphic forms of Alectinib and Alectinib hydrochloride.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: October 11, 2022
    Assignee: FRESENIUS KABI ONCOLOGY LTD.
    Inventors: Vinod Singh Tomar, Abul Azim, Nitin Gupta, Saswata Lahiri, Walter Cabri
  • PROCESS FOR PREPARING ALECTINIB OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF
    Publication number: 20210371410
    Abstract: The present invention relates to a process for preparing the Alectinib or a pharmaceutically acceptable salt thereof using lesser reaction steps and also eliminating expensive and time-consuming column chromatography. The invention also relates to novel polymorphic forms of Alectinib and Alectinib hydrochloride.
    Type: Application
    Filed: August 16, 2021
    Publication date: December 2, 2021
    Applicant: FRESENIUS KABI ONCOLOGY LIMITED
    Inventors: Vinod Singh TOMAR, Abul AZIM, Nitin GUPTA, Saswata LAHIRI, Walter CABRI
  • Process for preparing alectinib or a pharmaceutically acceptable salt thereof
    Patent number: 11098037
    Abstract: The present invention relates to a process for preparing the Alectinib or a pharmaceutically acceptable salt thereof using lesser reaction steps and also eliminating expensive and time-consuming column chromatography. The invention also relates to novel polymorphic forms of Alectinib and Alectinib hydrochloride.
    Type: Grant
    Filed: July 4, 2018
    Date of Patent: August 24, 2021
    Assignee: Fresenius Kabi Oncology Ltd.
    Inventors: Vinod Singh Tomar, Abul Azim, Nitin Gupta, Saswata Lahiri, Walter Cabri
  • A PROCESS FOR PREPARING ALECTINIB OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF
    Publication number: 20200140427
    Abstract: The present invention relates to a process for preparing the Alectinib or a pharmaceutically acceptable salt thereof using lesser reaction steps and also eliminating expensive and time-consuming column chromatography. The invention also relates to novel polymorphic forms of Alectinib and Alectinib hydrochloride.
    Type: Application
    Filed: July 4, 2018
    Publication date: May 7, 2020
    Applicant: FRESENIUS KABI ONCOLOGY LIMITED
    Inventors: Vinod Singh TOMAR, Abul AZIM, Nitin GUPTA, Saswata LAHIRI, Walter CABRI
  • Process for the preparation of bendamustine hydrochloride
    Patent number: 9643932
    Abstract: The present invention relates to an improved process for the synthesis of bendamustine, in particular, bendamustine hydrochloride of the formula (VI) and its intermediate 1-methyl-5-[bis(2-chloroethyl)amino]-1H-benzimidazol-2-yl]lithium butanoate of formula (V), both having a purity of ?99%, which is simple, convenient, economical, does not use hazardous chemicals and is industrially viable.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: May 9, 2017
    Assignee: Fresenius Kabi Oncology Limited
    Inventors: Bhuwan Bhaskar Mishra, Nikunj Shambhubhai Kachhadia, Vinod Singh Tomar, Saswata Lahiri
  • Process for the preparation of bendamustine hydrochloride
    Patent number: 9108924
    Abstract: The present invention relates to an improved process for the synthesis of bendamustine, in particular, bendamustine hydrochloride of the formula (VI) and its intermediate 1-methyl-5-[bis(2-chloroethyl)amino]-1H-benzimidazol-2-yl]lithium butanoate of formula (V), both having a purity of ?99%, which is simple, convenient, economical, does not use hazardous chemicals and is industrially viable.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: August 18, 2015
    Assignee: Fresenius Kabi Oncology Limited
    Inventors: Bhuwan Bhaskar Mishra, Nikunj Shambhubhai Kachhadia, Vinod Singh Tomar, Saswata Lahiri
  • PROCESS FOR THE PREPARATION OF BENDAMUSTINE HYDROCHLORIDE
    Publication number: 20150105561
    Abstract: The present invention relates to an improved process for the synthesis of bendamustine, in particular, bendamustine hydrochloride of the formula (VI) and its intermediate 1-methyl-5-[bis(2-chloroethyl)amino]-1H-benzimidazol-2-yl]lithium butanoate of formula (V), both having a purity of ?99%, which is simple, convenient, economical, does not use hazardous chemicals and is industrially viable.
    Type: Application
    Filed: December 19, 2014
    Publication date: April 16, 2015
    Inventors: Bhuwan Bhaskar Mishra, Nikunj Shambhubhai Kachhadia, Vinod Singh Tomar, Saswata Lahiri