Patents by Inventor Manohar Raghunath Surve

Manohar Raghunath 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 Rivaroxaban
    Publication number: 20170267669
    Abstract: The present invention relates to an environmentally friendly process for preparing rivaroxaban. The present invention provides a process for preparing rivaroxaban of formula I, the process comprising: reacting a compound of formula VI with a base in the presence of a solvent to form a compound of formula VII; and condensing the compound of formula VII with a compound of formula VIII or a compound of formula IX in the presence of a solvent to prepare rivaroxaban of formula I, wherein the solvent used in both steps comprises water.
    Type: Application
    Filed: August 24, 2015
    Publication date: September 21, 2017
    Inventors: Dharmaraj Ramachandra RAO, Geena MALHOTRA, Venkata Srinivas PULLELA, Manohar Raghunath SURVE, Hemant Sanjeevan DORLE, Kiran Balasaheb JADHAV
  • Process for the Preparation of O-Desmethyl Venlafaxine and Intermediate for Use Therein
    Publication number: 20150183722
    Abstract: The present invention relates to a compound of formula A, wherein R is alkyl. Compound A may be used as an intermediate in the preparation of O-desmethyl venlafaxine or a salt thereof, and the present invention provides such a preparation, as well as a process for preparing the compound of formula A.
    Type: Application
    Filed: March 16, 2015
    Publication date: July 2, 2015
    Inventors: Rajendra Narayanrao KANKAN, Dharmaraj Ramachandra RAO, Manohar Raghunath SURVE
  • Process for the preparation of O-desmethyl venlafaxine and intermediate for use therein
    Patent number: 9012689
    Abstract: The present invention relates to a compound of formula A, wherein R is alkyl. Compound A may be used as an intermediate in the preparation of O-desmethyl venlafaxine or a salt thereof, and the present invention provides such a preparation, as well as a process for preparing the compound of formula A.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: April 21, 2015
    Assignee: Cipla Limited
    Inventors: Rajendra Narayanrao Kankan, Dharmaraj Ramachandra Rao, Manohar Raghunath Surve
  • Process for the Preparation of O-Desmethyl Venlafaxine and Intermediate for Use Therein
    Publication number: 20120157544
    Abstract: The present invention relates to a compound of formula A, wherein R is alkyl. Compound A may be used as an intermediate in the preparation of O-desmethyl venlafaxine or a salt thereof, and the present invention provides such a preparation, as well as a process for preparing the compound of formula A.
    Type: Application
    Filed: July 14, 2010
    Publication date: June 21, 2012
    Applicant: CIPLA LIMITED
    Inventors: Rajendra Narayanrao Kankan, Dharmaraj Ramachandra Rao, Manohar Raghunath Surve