Patents by Inventor Divya Tewari

Divya Tewari 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).

  • Publication number: 20210077484
    Abstract: This invention relates a therapeutic pharmaceutical composition comprising: a mixture including an opioid; polyethylene oxide in an amount of about 3 to about 40 wt % of the composition; a disintegrant; and a surfactant; wherein the disintegrant is present in an amount sufficient to cause the pharmaceutical composition to exhibit an immediate release profile.
    Type: Application
    Filed: November 25, 2020
    Publication date: March 18, 2021
    Applicant: Acura Pharmaceuticals, Inc.
    Inventors: Vijai KUMAR, David DIXON, Divya TEWARI, Dilip B. WADGAONKAR
  • Patent number: 10596261
    Abstract: The present invention provides a coprocessed excipient composition and a method of producing the same. The coprocessed excipient comprises vinyl lactam derived polymer and a deagglomerated coprocessing agent. The coprocessing agent is fumed silica, colloidal silica or silicon dioxide. The coprocessed excipient is prepared by a continuous process and has a Brookfield cohesion of less than 0.12 kPa, a bulk density of at least 0.249 gram/milliliter and a flow property as measured by Johanson flow rate number increase from 1.1 to 5.0 fold.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: March 24, 2020
    Inventors: Divya Tewari, Yevgeniya A. Titova, Brad Beissner, Thomas Durig
  • Patent number: 10172944
    Abstract: An excipient composition having good bulk density and improved flow characteristics is provided. The present invention particularly provides a coprocessed excipient composition and a method of producing the same. The coprocessed excipient comprises cellulose derived polymer and a deagglomerated coprocessing agent. The coprocessing agent is fumed silica, colloidal silica or silicon dioxide. The coprocessed excipient is prepared in a continuous process and has excellent compactability and improved flow property as measured by Johanson flow rate number increase from 1.1 to 5.0 fold, is characterized by a Brookfield cohesion factor of less than 0.2 kPa and a bulk density of at least 0.249 g/ml.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: January 8, 2019
    Assignee: ISP INVESTMENTS LLC
    Inventors: Divya Tewari, Yevgeniya A. Titova, Brad Beissner, Thomas Durig
  • Publication number: 20180028527
    Abstract: This invention relates a therapeutic pharmaceutical composition comprising: a mixture including an opioid; polyethylene oxide in an amount of about 3 to about 40 wt % of the composition; a disintegrant; and a surfactant; wherein the disintegrant is present in an amount sufficient to cause the pharmaceutical composition to exhibit an immediate release profile.
    Type: Application
    Filed: October 5, 2017
    Publication date: February 1, 2018
    Applicant: Acura Pharmaceuticals, Inc.
    Inventors: Vijai KUMAR, David DIXON, Divya TEWARI, Dilip B. WADGAONKAR
  • Publication number: 20170049769
    Abstract: This invention relates a therapeutic pharmaceutical composition comprising: a mixture including an opioid; polyethylene oxide in an amount of about 3 to about 40 wt % of the composition; a disintegrant; and a surfactant; wherein the disintegrant is present in an amount sufficient to cause the pharmaceutical composition to exhibit an immediate release profile.
    Type: Application
    Filed: November 7, 2016
    Publication date: February 23, 2017
    Applicant: Acura Pharmaceuticals, Inc.
    Inventors: Vijai KUMAR, David DIXON, Divya TEWARI, Dilip B. WADGAONKAR
  • Patent number: 9492550
    Abstract: The presently disclosed and claimed inventive concept(s) relates to a polymer for enhancing drug performance and improving processability. Specifically, the polymer comprises hydroxypropyl methyl cellulose acetate succinate (HPMC-AS). On the HPMC-AS, the percentage of total succinoyl degree of substitution is less than 12% at C6-OH position and greater than 53% at C3-OH, and the percentage of total acetyl degree of substitution is greater than 32% at C6-OH position.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: November 15, 2016
    Assignee: Hercules LLC
    Inventors: Todd A. Brugel, Tuyen T. Nguyen, Sangrama Sahoo, Divya Tewari, Yuda Zong
  • Patent number: 9492443
    Abstract: This invention relates a therapeutic pharmaceutical composition comprising: a mixture including an opioid; polyethylene oxide in an amount of about 3 to about 40 wt % of the composition; a disintegrant; and a surfactant; wherein the disintegrant is present in an amount sufficient to cause the pharmaceutical composition to exhibit an immediate release profile.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: November 15, 2016
    Assignee: ACURA PHARMACEUTICALS, INC.
    Inventors: Vijai Kumar, David Dixon, Divya Tewari, Dilip B. Wadgaonkar
  • Publication number: 20160120989
    Abstract: An excipient composition having good bulk density and improved flow characteristics is provided. The present invention particularly provides a coprocessed excipient composition and a method of producing the same. The coprocessed excipient comprises cellulose derived polymer and a deagglomerated coprocessing agent. The coprocessing agent is fumed silica, colloidal silica or silicon dioxide. The coprocessed excipient is prepared in a continuous process and has excellent compactability and improved flow property as measured by Johanson flow rate number increase from 1.1 to 5.0 fold, is characterized by a Brookfield cohesion factor of less than 0.2 kPa and a bulk density of at least 0.249 g/ml.
    Type: Application
    Filed: March 12, 2014
    Publication date: May 5, 2016
    Applicant: ISP INVESTMENTS INC.
    Inventors: Divya TEWARI, Yevgeniya A. TITOVA, Brad BEISSNER, Thomas DURIG
  • Publication number: 20150359895
    Abstract: The present invention provides a coprocessed excipient composition and a method of producing the same. The coprocessed excipient comprises vinyl lactam derived polymer and a deagglomerated coprocessing agent. The coprocessing agent is fumed silica, colloidal silica or silicon dioxide. The coprocessed excipient is prepared by a continuous process and has a Brookfield cohesion of less than 0.12 kPa, a bulk density of at least 0.249 gram/milliliter and a flow property as measured by Johanson flow rate number increase from 1.1 to 5.0 fold.
    Type: Application
    Filed: March 12, 2014
    Publication date: December 17, 2015
    Applicant: ISP INVESTMENTS INC.
    Inventors: Divya TEWARI, Yevgeniya A. TITOVA, Brad BEISSNER, Thomas DURIG
  • Patent number: 8968456
    Abstract: The present invention relates to a film coating composition used for film coating pharmaceutical tablets, nutritional supplements, confectionary forms and the like. The film coating composition comprises a water soluble film former such as hydroxypropylcellulose, hydroxypropylmethylcellulose, hydroxyethylcellulose, starches, modified starches and the like and one or more hydrophobic compounds, such as metal salt of higher fatty acids, higher fatty alcohol, natural wax either from vegetable, animal origin or synthetic wax. Optionally, the film coating composition may include plasticizers, colorants, such as pigments and/or flow aids.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: March 3, 2015
    Assignee: Hercules Incorporated
    Inventors: Thomas Durig, Divya Tewari
  • Publication number: 20140336213
    Abstract: This invention relates a therapeutic pharmaceutical composition comprising: a mixture including an opioid; polyethylene oxide in an amount of about 3 to about 40 wt % of the composition; a disintegrant; and a surfactant; wherein the disintegrant is present in an amount sufficient to cause the pharmaceutical composition to exhibit an immediate release profile.
    Type: Application
    Filed: July 23, 2014
    Publication date: November 13, 2014
    Applicant: Acura Pharmaceuticals, Inc.
    Inventors: Vijai Kumar, David Dixon, Divya Tewari, Dilip B. Wadgaonkar
  • Publication number: 20140249235
    Abstract: The presently disclosed and claimed inventive concept(s) relates to a polymer for enhancing drug performance and improving processability. Specifically, the polymer comprises hydroxypropyl methyl cellulose acetate succinate (HPMC-AS). On the HPMC-AS, the percentage of total succinoyl degree of substitution is less than 12% at C6-OH position and greater than 53% at C3-OH, and the percentage of total acetyl degree of substitution is greater than 32% at C6-OH position.
    Type: Application
    Filed: February 21, 2014
    Publication date: September 4, 2014
    Applicant: HERCULES INCORPORATED
    Inventors: Todd A. Brugel, Tuyen T. Nguyen, Sangrama Sahoo, Divya Tewari, Yuda Zong
  • Patent number: 8822489
    Abstract: This invention relates to an abuse deterrent dosage form of opioid analgesics, wherein an analgesically effective amount of opioid analgesic is combined with a polymer to form a matrix.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: September 2, 2014
    Assignee: Acura Pharmaceuticals
    Inventors: Vijai Kumar, David Dixon, Divya Tewari, Dilip B. Wadgaonkar
  • Patent number: 8637540
    Abstract: This invention relates to an abuse deterrent dosage form of opioid analgesics, wherein an analgesically effective amount of opioid analgesic is combined with a polymer to form a matrix.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: January 28, 2014
    Assignee: Acura Pharmaceuticals
    Inventors: Vijai Kumar, David Dixon, Divya Tewari, Dilip B. Wadgaonkar
  • Publication number: 20130289062
    Abstract: This invention relates to an abuse deterrent dosage form of opioid analgesics, wherein an analgesically effective amount of opioid analgesic is combined with a polymer to form a matrix.
    Type: Application
    Filed: June 25, 2013
    Publication date: October 31, 2013
    Inventors: Vijai Kumar, David Dixon, Divya Tewari, Dilip B. Wadgaonkar
  • Patent number: 8409616
    Abstract: This invention relates to an abuse deterrent dosage form of opioid analgesics, wherein an analgesically effective amount of opioid analgesic is combined with a polymer to form a matrix.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: April 2, 2013
    Assignee: Acura Pharmaceuticals, Inc.
    Inventors: Vijai Kumar, David Dixon, Divya Tewari, Dilip B. Wadgaonkar
  • Publication number: 20120087982
    Abstract: This invention relates to an abuse deterrent dosage form of opioid analgesics, wherein an analgesically effective amount of opioid analgesic is combined with a polymer to form a matrix.
    Type: Application
    Filed: December 15, 2011
    Publication date: April 12, 2012
    Applicant: ACURA PHARMACEUTICALS, INC.
    Inventors: Vijai Kumar, David Dixon, Divya Tewari, Dilip B. Wadgaonkar
  • Patent number: 8101630
    Abstract: This invention relates to an abuse deterrent dosage form of opioid analgesics, wherein an analgesically effective amount of opioid analgesic is combined with a polymer to form a matrix.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: January 24, 2012
    Assignee: Acura Pharmaceuticals, Inc.
    Inventors: Vijai Kumar, David Dixon, Divya Tewari, Dilip B. Wadgaonkar
  • Patent number: 7981439
    Abstract: This invention relates to an abuse deterrent dosage form of opioid analgesics, wherein an analgesically effective amount of opioid analgesic is combined with a polymer to form a matrix.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: July 19, 2011
    Assignee: Acura Pharmaceuticals, Inc.
    Inventors: Vijai Kumar, David Dixon, Divya Tewari, Dilip B. Wadgaonkar
  • Publication number: 20110048281
    Abstract: The present invention relates to a film coating composition used for film coating pharmaceutical tablets, nutritional supplements, confectionary forms and the like. The film coating composition comprises a water soluble film former such as hydroxypropylcellulose, hydroxypropylmethylcellulose, hydroxyethylcellulose, starches, modified starches and the like and one or more hydrophobic compounds, such as metal salt of higher fatty acids, higher fatty alcohol, natural wax either from vegetable, animal origin or synthetic wax. Optionally, the film coating composition may include plasticizers, colorants, such as pigments and/or flow aids.
    Type: Application
    Filed: August 26, 2010
    Publication date: March 3, 2011
    Applicant: HERCULES INCORPORATED
    Inventors: Thomas DURIG, Divya TEWARI