Patents by Inventor Nipun Davar

Nipun Davar 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: 20130122099
    Abstract: Non-effervescent pharmaceutical compositions having at least one particle of carbonate coated by a layer of polyethylene glycol that substantially covers the at least one carbonate particle are described. Compositions are also described where the compositions include a weakly basic therapeutic agent, a first pH-modifying agent having at least one particle of carbonate coated by a layer of polyethylene glycol, and a second pH-modifying agent. The weakly basic therapeutic agent could be, but is not limited to, zolpidem or scopolamine. Compositions including zolpidem and scopolamine are used to treat insomnia and depression, respectively.
    Type: Application
    Filed: May 7, 2012
    Publication date: May 16, 2013
    Inventors: NIPUN DAVAR, Pauly Kavalakatt, Indiran Pather, Sangita Ghosh
  • Publication number: 20120283275
    Abstract: Disclosed are dosage forms and methods comprising benzisoxazole derivatives. More particularly, disclosed are dosage forms, methods, and new uses of benzisoxazole derivatives that substantially reduce or substantially eliminate certain side effects of the benzisoxazole derivatives when dosed to a patient.
    Type: Application
    Filed: May 9, 2012
    Publication date: November 8, 2012
    Inventors: Gayatri Sathyan, Suneel Gupta, Noymi V. Yam, Iran Reyes, Nipun Davar, Atul D. Ayer, Julie Lee, Sonya Seroff
  • Publication number: 20120128730
    Abstract: Compositions for once-daily administration of ondansetron are described. Compositions include a core, a semi-permeable membrane disposed generally around the core, an orifice in the semi-permeable membrane in fluid communication with the core, and a coating having a first therapeutically effective dose of ondansetron or a pharmaceutically acceptable salt disposed generally around the semi-permeable membrane. The core includes first, second, and third layers. The first layer is in fluid communication with the orifice. The second layer includes a second therapeutically effective dose of ondansetron or a pharmaceutically acceptable salt and is located adjacent to the first layer. The third layer is located adjacent the second layer. Methods for treating obsessive compulsive disorder by administering these compositions are also described.
    Type: Application
    Filed: December 21, 2010
    Publication date: May 24, 2012
    Inventors: NIPUN DAVAR, Pauly Kavalakatt, Sangita Ghosh
  • Publication number: 20120128778
    Abstract: A trilayer osmotic tablet is described. The tablet includes a core, a semi-permeable membrane disposed generally around the core, and an orifice in the semi-permeable membrane in fluid communication with the core. The core includes first, second, and third layers. The first layer is in fluid communication with the orifice. The second layer includes a therapeutically effective dose of a drug and is located adjacent to the first layer. The third layer is located adjacent the second layer. The tablet may include a coating having therapeutically effective doses of at least one additional drug disposed in the coating that generally surrounds the semi-permeable membrane. The at least one additional drug in the coating may be the same or different from the drug in the trilayer core. Methods for treating epilepsy, psychiatric disorders, asthma, and peptic ulcer disease by administering these compositions are also described.
    Type: Application
    Filed: November 23, 2011
    Publication date: May 24, 2012
    Inventors: Nipun Davar, Sangita Ghosh
  • Publication number: 20110195981
    Abstract: Disclosed are dosage forms and methods comprising benzisoxazole derivatives. More particularly, disclosed are dosage forms, methods, and new uses of benzisoxazole derivatives that substantially reduce or substantially eliminate certain side effects of the benzisoxazole derivatives when dosed to a patient.
    Type: Application
    Filed: January 24, 2011
    Publication date: August 11, 2011
    Inventors: Gayatri Sathyan, Suneel Gupta, Noymi V. Yam, Iran Reyes, Nipun Davar, Atul D. Ayer, Julie Lee, Sonya Seroff
  • Publication number: 20100266682
    Abstract: Non-effervescent pharmaceutical compositions having at least one particle of carbonate coated by a layer of polyethylene glycol that substantially covers the at least one carbonate particle are described. Compositions are also described where the compositions include a weakly basic therapeutic agent, a first pH-modifying agent having at least one particle of carbonate coated by a layer of polyethylene glycol, and a second pH-modifying agent. The weakly basic therapeutic agent could be, but is not limited to, zolpidem or scopolamine. Compositions including zolpidem and scopolamine are used to treat insomnia and depression, respectively.
    Type: Application
    Filed: April 21, 2010
    Publication date: October 21, 2010
    Inventors: Nipun Davar, Pauly Kavalakatt, Indiran Pather, Sangita Ghosh
  • Publication number: 20100143486
    Abstract: Non-effervescent pharmaceutical compositions having at least one particle of carbonate coated by a layer of polyethylene glycol that substantially covers the at least one carbonate particle are described. Compositions are also described where the compositions include a weakly basic therapeutic agent, a first pH-modifying agent having at least one particle of carbonate coated by a layer of polyethylene glycol, and a second pH-modifying agent. The weakly basic therapeutic agent could, but is not limited to, be zolpidem or scopolamine. Compositions including zolpidem and scopolamine are used to treat insomnia and depression, respectively.
    Type: Application
    Filed: December 10, 2008
    Publication date: June 10, 2010
    Inventors: Nipun DAVAR, Pauly KAVALAKATT, Sangita GHOSH
  • Publication number: 20090221621
    Abstract: Disclosed are methods of sustained release administration of opioids, including but not limited to hydromorphone and oxycodone, that exhibit improved properties with respect to co-ingestion with aqueous alcohol.
    Type: Application
    Filed: October 31, 2006
    Publication date: September 3, 2009
    Applicant: ALZA CORPORATION
    Inventors: Gayatri Sathyan, Nipun Davar
  • Publication number: 20090202631
    Abstract: Dosage forms and methods for providing a substantially ascending rate of release of paliperidone or risperidone are provided. The sustained release dosage forms provide therapeutically effective average steady-state plasma paliperidone or risperidone concentrations when administered once per day. This once-a-day dosing regimen results in only one peak plasma paliperidone or risperidone concentration occurrence in each 24 hour period. In addition, the peak plasma paliperidone or risperidone concentration occurs at a later time following dose administration and exhibits a lesser magnitude than the peak plasma paliperidone or risperidone concentration that occurs following administration of paliperidone or risperidone in an immediate-release dosage form.
    Type: Application
    Filed: April 22, 2009
    Publication date: August 13, 2009
    Inventors: Nyomi V. Yam, Iran Reyes, Nipun Davar, Atul D. Ayer, Julie Lee, Sonya Seroff, Suneel K. Gupta, Gayatri Sathyan
  • Publication number: 20080249497
    Abstract: Improvements in a mini-osmotic pump and coating compositions are described. The dispensing pump includes an inner fluid-filled bag encased by an osmotic layer and outer, semi-permeable membrane. The inner bag is formed with an arcuate edge at the open end of the bag to inhibit formation of fissures in the outer membrane in this edge region. The coating compositions include cellulose acetate butyrate, cellulose acetate propionate, and polymethylmethacrylate polymers, optionally mixed with ethyl cellulose in acetone based solvent systems.
    Type: Application
    Filed: October 10, 2007
    Publication date: October 9, 2008
    Inventors: Patrick S.L. Wong, Nipun Davar
  • Patent number: 7335193
    Abstract: Improvements in a mini-osmotic pump and coating compositions are described. The dispensing pump includes an inner fluid-filled bag encased by an osmotic layer and outer, semi-permeable membrane. The inner bag is formed with an arcuate edge at the open end of the bag to inhibit formation of fissures in the outer membrane in this edge region. The coating compositions include cellulose acetate butyrate, cellulose acetate propionate, and polymethylmethacrylate polymers, optionally mixed with ethyl cellulose in acetone based solvent systems.
    Type: Grant
    Filed: July 6, 2004
    Date of Patent: February 26, 2008
    Assignee: Durect Corporation
    Inventors: Patrick S. L. Wong, Nipun Davar
  • Publication number: 20070190137
    Abstract: Disclosed are osmotic dosage forms including a semi-permeable membrane; a first and a second orifice in the semi-permeable membrane located at opposite ends of the semi-permeable membrane; a controlled release drug layer located adjacent to the first orifice and within the semi-permeable membrane; a fast release drug layer located adjacent to the second orifice and within the semi-permeable membrane; a push layer located within the semi-permeable membrane and between the controlled release drug layer and the fast release drug layer; a barrier layer slidably located between the push layer and the fast release drug layer; and wherein an area of the second orifice is greater than or equal to about 7800 mil2. Also disclosed are methods of making and using such osmotic dosage forms.
    Type: Application
    Filed: September 26, 2006
    Publication date: August 16, 2007
    Inventors: Reyes Iran, Julie Lee, Brian Barclay, Nipun Davar, Ramkumar Subramanian
  • Publication number: 20070166381
    Abstract: Disclosed are osmotic dosage forms and methods that provide for fast release of drugs together with controlled release of drugs. In an aspect, disclosed are osmotic dosage forms including: a semi-permeable membrane; a lubricating subcoat located within the semi-permeable membrane; an orifice in the semi-permeable membrane located at an end of the semi-permeable membrane; a drug layer located adjacent to the orifice and within the lubricating subcoat; a push layer located within the lubricating subcoat and on a side of the drug layer opposite from the orifice; wherein an area of the orifice is greater than or equal to about 1,600 mil2; and wherein the drug layer comprises from about 20 wt % to about 90 wt % microcrystalline cellulose, and less than or equal to about 10 wt % of a drug, based on the total weight of the drug layer. Also disclosed are methods of making osmotic dosage forms.
    Type: Application
    Filed: January 3, 2007
    Publication date: July 19, 2007
    Inventors: Iran Reyes, Julie Lee, Brian Barclay, Iswadi Liejanto, Nipun Davar
  • Publication number: 20070026067
    Abstract: Disclosed are dosage forms including a controlled release dosing structure; and a liquid formulation contained within the controlled release dosing structure; wherein the liquid formulation comprises a benzisoxazole derivative and a liquid carrier. Also disclosed are methods of making and using such dosage forms.
    Type: Application
    Filed: July 28, 2006
    Publication date: February 1, 2007
    Inventors: Noymi Yam, Nipun Davar, Gayatri Sathyan, Suneel Gupta
  • Publication number: 20050260268
    Abstract: A dosage form for delivery of alprazolam is described. The sustained release dosage form provides via once-a-day dosing a therapeutically effective average steady-state plasma alprazolam concentration, where the maximum attained plasma concentration is achieved more than about 14 hours after administration. The slow, sustained release reduces side effects such as sedation and abuse potential.
    Type: Application
    Filed: September 24, 2004
    Publication date: November 24, 2005
    Inventors: Nishit Modi, Suneel Gupta, Nipun Davar, Sonya Seroff
  • Publication number: 20050232995
    Abstract: Dosage forms and methods for providing a substantially ascending rate of release of paliperidone or risperidone are provided. The sustained release dosage forms provide therapeutically effective average steady-state plasma paliperidone or risperidone concentrations when administered once per day. This once-a-day dosing regimen results in only one peak plasma paliperidone or risperidone concentration occurrence in each 24 hour period. In addition, the peak plasma paliperidone or risperidone concentration occurs at a later time following dose administration and exhibits a lesser magnitude than the peak plasma paliperidone or risperidone concentration that occurs following administration of paliperidone or risperidone in an immediate-release dosage form.
    Type: Application
    Filed: February 4, 2005
    Publication date: October 20, 2005
    Inventors: Nyomi Yam, Iran Reyes, Nipun Davar, Atul Ayer, Julie Lee, Sonya Seroff, Suneel Gupta, Gayatri Sathyan
  • Publication number: 20050208132
    Abstract: Disclosed are dosage forms and methods comprising benzisoxazole derivatives. More particularly, disclosed are dosage forms, methods, and new uses of benzisoxazole derivatives that substantially reduce or substantially eliminate certain side effects of the benzisoxazole derivatives when dosed to a patient.
    Type: Application
    Filed: February 4, 2005
    Publication date: September 22, 2005
    Inventors: Gayatri Sathyan, Suneel Gupta, Noymi Yam, Iran Reyes, Nipun Davar, Atul Ayer, Julie Lee, Sonya Seroff
  • Publication number: 20050043457
    Abstract: Improvements in a mini-osmotic pump and coating compositions are described. The dispensing pump includes an inner fluid-filled bag encased by an osmotic layer and outer, semi-permeable membrane. The inner bag is formed with an arcuate edge at the open end of the bag to inhibit formation of fissures in the outer membrane in this edge region. The coating compositions include cellulose acetate butyrate, cellulose acetate propionate, and polymethylmethacrylate polymers, optionally mixed with ethyl cellulose in acetone based solvent systems.
    Type: Application
    Filed: July 6, 2004
    Publication date: February 24, 2005
    Inventors: Patrick Wong, Nipun Davar
  • Publication number: 20040092534
    Abstract: Dosage forms and methods for providing a substantially ascending rate of release of paliperidone are provided. The sustained release dosage forms provide therapeutically effective average steady-state plasma paliperidone concentrations when administered once per day. This once-a-day dosing regimen results in only one peak plasma paliperidone concentration occurrence in each 24 hour period. In addition, the peak plasma paliperidone concentration occurs at a later time following dose administration and exhibits a lesser magnitude than the peak plasma paliperidone concentration that occurs following administration of paliperidone in an immediate-release dosage form.
    Type: Application
    Filed: July 28, 2003
    Publication date: May 13, 2004
    Inventors: Nyomi V. Yam, Iran Reyes, Nipun Davar, Atul D. Ayer, Julie Lee
  • Publication number: 20010047161
    Abstract: Improvements in a mini-osmotic pump and coating compositions are described. The dispensing pump includes an inner fluid-filled bag encased by an osmotic layer and outer, semi-permeable membrane. The inner bag is formed with an arcuate edge at the open end of the bag to inhibit formation of fissures in the outer membrane in this edge region. The coating compositions include cellulose acetate butyrate, cellulose acetate propionate, and polymethylmethacrylate polymers, optionally mixed with ethyl cellulose in acetone based solvent systems.
    Type: Application
    Filed: January 30, 2001
    Publication date: November 29, 2001
    Inventors: Patrick S.L. Wong, Nipun Davar