Patents by Inventor Yashwant Surve

Yashwant Surve 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 apixaban and intermediates thereof
    Patent number: 10336753
    Abstract: The present invention refers to novel process for the preparation of Apixaban. Further, the invention also related to a process for the preparation of intermediate of Apixaban from very basic and cheap row material i.e. Aniline which is widely commercially available. The present invention provides process for preparation of Apixaban using a different sequence of synthetic steps and does not involve use of Ullmann reaction.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: July 2, 2019
    Assignee: Unichem Laboratories Limited
    Inventors: Dhananjay G. Sathe, Arijit Das, Yashwant Surve, Ramdas N. Ahire
  • Process for the preparation of Apixaban and intermediates thereof
    Patent number: 10208036
    Abstract: The present invention refers to novel process for the preparation of Apixaban. Further, the invention also related to a process for the preparation of intermediate of Apixaban from very basic and cheap row material i.e. Aniline which is widely commercially available. The present invention provides process for preparation of Apixaban using a different sequence of synthetic steps and does not involve use of Ullmann reaction.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: February 19, 2019
    Assignee: Unichem Laboratories Limited
    Inventors: Dhananjay G. Sathe, Arijit Das, Yashwant Surve, Ramdas N. Ahire
  • PROCESS FOR THE PREPARATION OF APIXABAN AND INTERMEDIATES THEREOF
    Publication number: 20180362528
    Abstract: The present invention refers to novel process for the preparation of Apixaban. Further, the invention also related to a process for the preparation of intermediate of Apixaban from very basic and cheap row material i.e. Aniline which is widely commercially available. The present invention provides process for preparation of Apixaban using a different sequence of synthetic steps and does not involve use of Ullmann reaction.
    Type: Application
    Filed: August 22, 2018
    Publication date: December 20, 2018
    Inventors: Dhananjay G. Sathe, Arijit Das, Yashwant Surve, Ramdas N. Ahire
  • Process for the preparation of Apixaban and intermediates thereof
    Patent number: 10118924
    Abstract: The present invention refers to novel process for the preparation of Apixaban. Further, the invention also related to a process for the preparation of intermediate of Apixaban from very basic and cheap row material i.e. Aniline which is widely commercially available. The present invention provides process for preparation of Apixaban using a different sequence of synthetic steps and does not involve use of Ullmann reaction.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: November 6, 2018
    Assignee: Unichem Laboratories Limited
    Inventors: Dhananjay G. Sathe, Arijit Das, Yashwant Surve, Ramdas N. Ahire
  • PROCESS FOR THE PREPARATION OF APIXABAN AND INTERMEDIATES THEREOF
    Publication number: 20180099963
    Abstract: The present invention refers to novel process for the preparation of Apixaban. Further, the invention also related to a process for the preparation of intermediate of Apixaban from very basic and cheap row material i.e. Aniline which is widely commercially available. The present invention provides process for preparation of Apixaban using a different sequence of synthetic steps and does not involve use of Ullmann reaction.
    Type: Application
    Filed: September 6, 2017
    Publication date: April 12, 2018
    Inventors: Dhananjay D. Sathe, Arijit Das, Yashwant Surve, Ramdas N. Ahire
  • Process for the preparation of apixaban and intermediates thereof
    Patent number: 9908881
    Abstract: The present invention refers to novel process for the preparation of Apixaban. Further, the invention also related to a process for the preparation of intermediate of Apixaban from very basic and cheap row material i.e. Aniline which is widely commercially available. The present invention provides process for preparation of Apixaban using a different sequence of synthetic steps and does not involve use of Ullmann reaction.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: March 6, 2018
    Assignee: Unichem Laboratories Limited
    Inventors: Dhananjay G Sathe, Arijit Das, Yashwant Surve, Ramdas N. Ahire
  • PROCESS FOR THE PREPARATION OF APIXABAN AND INTERMEDIATES THEREOF
    Publication number: 20170362232
    Abstract: The present invention refers to novel process for the preparation of Apixaban. Further, the invention also related to a process for the preparation of intermediate of Apixaban from very basic and cheap row material i.e. Aniline which is widely commercially available. The present invention provides process for preparation of Apixaban using a different sequence of synthetic steps and does not involve use of Ullmann reaction.
    Type: Application
    Filed: September 6, 2017
    Publication date: December 21, 2017
    Inventors: Dhananjay D. Sathe, Arijit Das, Yashwant Surve, Ramdas N. Ahire
  • PROCESS FOR THE PREPARATION OF APIXABAN AND INTERMEDIATES THEREOF
    Publication number: 20170015663
    Abstract: The present invention refers to novel process for the preparation of Apixaban. Further, the invention also related to a process for the preparation of intermediate of Apixaban from very basic and cheap row material i.e. Aniline which is widely commercially available. The present invention provides process for preparation of Apixaban using a different sequence of synthetic steps and does not involve use of Ullmann reaction.
    Type: Application
    Filed: September 30, 2016
    Publication date: January 19, 2017
    Inventors: Dhananjay D. Sathe, Arijit Das, Yashwant Surve, Ramdas N. Ahire