Patents by Inventor Viral Parekh

Viral Parekh 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).

  • Reference markers for fesoterodine fumarate
    Patent number: 9440910
    Abstract: The present invention relates to the new impurities of Fesoterodine, Fesoterodine symmetric dimer impurity and asymmetric dimer impurity, process for preparing and isolating thereof. The invention also deals with analytical standards and analytical methods used for the control of the production process and final quality of Fesoterodine.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: September 13, 2016
    Assignee: Alembic Pharmaceuticals Limited
    Inventors: Venkatraman Jayaraman, Sundara Kalyana Balaji, Samir Patel, Thakor Indrajit, Viral Parekh, Mahesh Ladani, Chetan Patil, Ronak Patel, Darshan Parmar
  • Process for preparing fesoterodine
    Patent number: 9085509
    Abstract: The present invention relates to an improved process for the preparation of Fesoterodine and pharmaceutically acceptable salts thereof. The present invention particularly relates to a process for the preparation of fesoterodine and pharmaceutically acceptable salts thereof which involves use and preparation of R(+)benzyl tolterodine and fumarate salt of R(+)-[4-benzyloxy-3-(3-diisopropylamino-1-phenylpropyl)-phenyl]-methanol.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: July 21, 2015
    Assignee: ALEMBIC PHARMACEUTICALS LIMITED
    Inventors: Jayaraman Venkat Raman, Samir Patel, Indrajit Thakor, Mahesh Ladani, Chetan Patil, Ronak Patel, Prashant Raval, Viral Parekh, Hiral Shah
  • THE NOVEL REFERENCE MARKERS FOR FESOTERODINE FUMARATE
    Publication number: 20150175526
    Abstract: The present invention relates to the new impurities of Fesoterodine, Fesoterodine symmetric dimer impurity and asymmetric dimer impurity, process for preparing and isolating thereof. The invention also deals with analytical standards and analytical methods used for the control of the production process and final quality of Fesoterodine.
    Type: Application
    Filed: January 8, 2013
    Publication date: June 25, 2015
    Applicant: Alembic Pharmaceuticals Limited
    Inventors: Venkatraman Jayaraman, Sundara Kalyana Balaji, Samir Patel, Thakor Indrajit, Viral Parekh, Mahesh Ladani, Chetan Patil, Ronak Patel, Darshan Parmar, Venkatraman Jayaraman, Sundara Kalyana Balaji, Samir Patel, Thakor Indrajit, Viral Parekh, Mahesh Ladani, Chetan Patil, Ronak Patel, Darshan Parmar
  • NOVEL REFERENCE MARKERS FOR FESOTERODINE FUMARATE
    Publication number: 20140374284
    Abstract: The present invention relates to the new impurities of Fesoterodine, Fesoterodine symmetric dimer impurity and asymmetric dimer impurity, process for preparing and isolating thereof. The invention also deals with analytical standards and analytical methods used for the control of the production process and final quality of Fesoterodine.
    Type: Application
    Filed: January 8, 2013
    Publication date: December 25, 2014
    Inventors: Venkatraman Jayaraman, Sundara Kalyana Balaji, Samir Patel, Thakor Indrajit, Viral Parekh, Mahesh Ladani, Chetan Patil, Ronak Patel, Darshan Parmar
  • PROCESS FOR PREPARING FESOTERODINE
    Publication number: 20140039216
    Abstract: The present invention relates to an improved process for the preparation of Fesoterodine and pharmaceutically acceptable salts thereof. The present invention particularly relates to a process for the preparation of fesoterodine and pharmaceutically acceptable salts thereof which involves use and preparation of R(+)benzyl tolterodine and fumarate salt of R(+)-[4-benzyloxy-3-(3-diisopropylamino-1-phenylpropyl)-phenyl]-methanol.
    Type: Application
    Filed: November 11, 2011
    Publication date: February 6, 2014
    Applicant: ALEMBIC PHARMACEUTICALS LIMITED
    Inventors: Jayaraman Venkat Raman, Samir Patel, Indrajit Thakor, Mahesh Ladani, Chetan Patil, Ronak Patel, Prashant Raval, Viral Parekh, Hiral Shah
  • Synthesis of benzotriazole monomer
    Patent number: 7825257
    Abstract: The synthesis of benzotriazole monomers and the use of the benzotriazole monomers and one or more other monomers to prepare ultraviolet (UV) light absorbing polymer compositions. The synthetic methods described in this application provide a significant improvement over the previous methods used to prepare benzotriazole monomers.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: November 2, 2010
    Assignee: Bausch & Lomb Incorporated
    Inventors: Keshav Deo, Chandrakant Chunilal Shah, Kalpesh Patel, Nilpesh Patel, Viral Parekh, Ronak Patel, Jignesh Soni, Hiral Shah, David E. Seelye, Mahendra P. Nandu