Patents by Inventor Anand Baichwal

Anand Baichwal 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: 20080050431
    Abstract: Sustained release formulations of oxymorphone or pharmaceutically acceptable salts thereof; methods for making the sustained release formulations of oxymorphone or pharmaceutically acceptable salts thereof; and methods for using the sustained release formulations of oxymorphone or pharmaceutically acceptable salts thereof to treat patients suffering from pain are provided.
    Type: Application
    Filed: August 13, 2007
    Publication date: February 28, 2008
    Applicant: Penwest Pharmaceuticals Company.
    Inventors: Anand Baichwal, Huai-Hung Kao, Troy McCall
  • Publication number: 20070218137
    Abstract: Disclosed are sustained release oral solid dosage forms comprising a therapeutically effective amount of a medicament having a solubility of more than about 10 g/l; a pH modifying agent; and a sustained release matrix comprising a gelling agent, said gelling agent comprising a heteropolysaccharide gum and a homopolysaccharide gum capable of cross-linking said heteropolysaccharide gum when exposed to an environmental fluid, said dosage form providing a sustained release of said medicament after oral administration to human patients.
    Type: Application
    Filed: March 27, 2007
    Publication date: September 20, 2007
    Applicant: Penwest Pharmaceuticals Co.
    Inventors: Anand Baichwal, Troy McCall, Lirong Liu, Steve Labudzinski
  • Publication number: 20070212414
    Abstract: The invention provides formulations that resist dose dumping in the presence of ethanol and methods of use thereof. The formulations can be used to prevent dose dumping, to increase safety of drugs, and to reduce abuse of drugs prone to such abuse. The formulations comprise at least one drug and a sustained release delivery system. In one embodiment, the drug is an opioid.
    Type: Application
    Filed: March 8, 2006
    Publication date: September 13, 2007
    Applicant: Penwest Pharmaceuticals Co.
    Inventors: Anand Baichwal, Steve Labudzinski
  • Publication number: 20070140975
    Abstract: The invention provides opioid formulations having reduced potential for abuse, and having reduced potential for illegal sale and distribution. The opioid formulations of the invention comprise at least one opioid and a sustained release delivery system.
    Type: Application
    Filed: February 9, 2007
    Publication date: June 21, 2007
    Applicant: Penwest Pharmaceuticals Co.
    Inventors: Anand Baichwal, Paul Woodcock, Troy McCall
  • Publication number: 20070134328
    Abstract: The invention pertains to a method of relieving pain by administering a controlled release pharmaceutical tablet containing oxymorphone which produces a mean minimum blood plasma level 12 to 24 hours after dosing, as well as the tablet producing the sustained pain relief.
    Type: Application
    Filed: February 28, 2007
    Publication date: June 14, 2007
    Applicant: Endo Pharmaceuticals, Inc.
    Inventors: Huai-Hung Kao, Anand Baichwal, Troy McCall, David Lee
  • Publication number: 20070104778
    Abstract: The present invention is directed to controlled-release composition containing a solubilized material comprising an active agent and at least one oil-based surfactant capable of solubilizing the active agent, the solubilized material dispersed in a controlled-release particulate matrix.
    Type: Application
    Filed: November 7, 2006
    Publication date: May 10, 2007
    Inventors: Hongxia Zeng, Antonio Moroni, Anand Baichwal, Philip Goliber, Sara Ketsela, Daniel McNamara
  • Publication number: 20070098794
    Abstract: The invention pertains to a method of relieving pain by administering a controlled release pharmaceutical tablet containing oxymorphone which produces a mean minimum blood plasma level 12 to 24 hours after dosing, as well as the tablet producing the sustained pain relief.
    Type: Application
    Filed: June 29, 2006
    Publication date: May 3, 2007
    Inventors: Haui-Hung Kao, Anand Baichwal, Troy McCall, David Lee
  • Publication number: 20070098792
    Abstract: The invention pertains to a method of relieving pain by administering a controlled release pharmaceutical tablet containing oxymorphone which produces a mean minimum blood plasma level 12 to 24 hours after dosing, as well as the tablet producing the sustained pain relief.
    Type: Application
    Filed: June 22, 2006
    Publication date: May 3, 2007
    Inventors: Haui-Hung Kao, Anand Baichwal, Troy McCall, David Lee
  • Publication number: 20070098793
    Abstract: The invention pertains to a method of relieving pain by administering a controlled release pharmaceutical tablet containing oxymorphone which produces a mean minimum blood plasma level 12 to 24 hours after dosing, as well as the tablet producing the sustained pain relief.
    Type: Application
    Filed: June 23, 2006
    Publication date: May 3, 2007
    Inventors: Haui-Hung Kao, Anand Baichwal, Troy McCall, David Lee
  • Publication number: 20070048376
    Abstract: Sustained release formulations of nalbuphine or pharmaceutically acceptable salts thereof; methods for making the sustained release formulations of nalbuphine or pharmaceutically acceptable salts thereof; and methods for using the sustained release formulations of nalbuphine or pharmaceutically acceptable salts thereof to treat patients suffering from pain are provided.
    Type: Application
    Filed: August 24, 2006
    Publication date: March 1, 2007
    Applicant: Penwest Pharmaceuticals Co.
    Inventors: Anand Baichwal, Philip Goliber, Anthony Carpanzano, Thomas Sciascia, Donald Diehl, Brian Vogler
  • Patent number: 7172766
    Abstract: Controlled release powder insufflation formulations are disclosed. The powder formulation includes cohesive composites of particles containing a medicament and a controlled release carrier which preferably includes one or more polysaccharide gums of natural origin.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: February 6, 2007
    Assignee: Penwest Pharmaceuticals Company
    Inventors: Anand Baichwal, John Staniforth
  • Publication number: 20060228413
    Abstract: In certain embodiments, the present invention is directed to a controlled release oral dosage form comprising: a therapeutically effective amount of venlafaxine or a pharmaceutically acceptable salt thereof and a controlled release material; wherein the amount of venlafaxine or pharmaceutically acceptable salt thereof released at 1 hour in 900 mL 0.1 N HCl (pH 1.5) with 40% EtOH using USP Apparatus II at 50 rpm is within 25% of the amount of venlafaxine or pharmaceutically acceptable salt thereof released at 1 hour in 900 mL 0.1 N HCl (pH 1.5) using USP Apparatus II at 50 rpm.
    Type: Application
    Filed: February 28, 2006
    Publication date: October 12, 2006
    Applicant: Penwest Pharmaceuticals Co.
    Inventors: Sara Ketsela, Dean Dinicola, Anand Baichwal
  • Publication number: 20060193912
    Abstract: In certain embodiments, the present invention is directed to a controlled release oral dosage form comprising a therapeutically effective amount of O-desmethylvenlafaxine or a pharmaceutically acceptable salt thereof and a controlled release material; wherein the amount of O-desmethylvenlafaxine or pharmaceutically acceptable salt thereof released at 1 hour in 900 mL 0.1 N HCl (pH 1.5) with 40% EtOH using USP Apparatus II at 50 rpm is within 25% of the amount of O-desmethylvenlafaxine or pharmaceutically acceptable salt thereof released at 1 hour in 900 mL 0.1 N HCl (pH 1.5) using USP Apparatus II at 50 rpm.
    Type: Application
    Filed: February 28, 2006
    Publication date: August 31, 2006
    Applicant: Penwest Pharmaceuticals Co.
    Inventors: Sara Ketsela, Dean Dinicola, Anand Baichwal
  • Publication number: 20060193911
    Abstract: In certain embodiments, the present invention is directed to a controlled release oral solid dosage form comprising a matrix comprising a therapeutically effective amount of venlafaxine, an active metabolite of venlafaxine, or a pharmaceutically acceptable salt thereof, dispersed in a cross-linked gelling agent, the matrix providing a controlled release of venlafaxine, active metabolite of venlafaxine, or salt thereof to provide 24 hour therapeutic plasma levels after oral administration to human patients.
    Type: Application
    Filed: February 28, 2006
    Publication date: August 31, 2006
    Applicant: Penwest Pharmaceuticals Co.,
    Inventors: Sara Ketsela, Dean Dinicola, Anand Baichwal
  • Publication number: 20060105035
    Abstract: A sustained release pharmaceutical formulation includes a sustained release excipient including a gelling agent, an inert pharmaceutical diluent, an optional cationic cross-linking agent, and a medicament having moderate to poor solubility is disclosed. In certain embodiments, the sustained release excipient is granulated with a solution or suspension of a hydrophobic polymer in an amount effective to slow the hydration of the gelling agent when the formulation is exposed to an environmental fluid. In another embodiment, the tablet is coated with a hydrophobic polymer.
    Type: Application
    Filed: January 17, 2006
    Publication date: May 18, 2006
    Applicant: Penwest Pharmaceuticals Co.
    Inventor: Anand Baichwal
  • Publication number: 20050276853
    Abstract: A chronotherapeutic pharmaceutical formulation comprising a core containing an active agent (e.g., a drug) and a delayed release compression coating comprising a natural or synthetic gum applied onto the surface of the core.
    Type: Application
    Filed: December 1, 2004
    Publication date: December 15, 2005
    Inventors: Anand Baichwal, Paul Woodcook, Raymond Higgins, Jaclyn Cobb
  • Publication number: 20050238715
    Abstract: The invention provides a novel pharmaceutical compositions useful for the delivery of more than one pharmaceutically active compound. More specifically, the invention provides a novel pharmaceutical compositions useful for the delivery of the (+) tramadol enantiomer and the (?) tramadol enantiomer.
    Type: Application
    Filed: June 22, 2005
    Publication date: October 27, 2005
    Applicant: Penwest Pharmaceuticals Co.
    Inventors: Lirong Liu, Alex Shlyankevich, Anand Baichwal
  • Publication number: 20050118267
    Abstract: A chronotherapeutic pharmaceutical formulation comprising a core containing an active agent (e.g., a drug) and a surfactant and a delayed release compression coating comprising a natural or synthetic gum applied onto the surface of the core.
    Type: Application
    Filed: September 17, 2004
    Publication date: June 2, 2005
    Applicant: Penwest Pharmaceuticals Co.
    Inventors: Anand Baichwal, Paul Woodcock, Steve Labudzinski
  • Publication number: 20050112201
    Abstract: A delayed release pharmaceutical formulation comprising a core containing an active agent (e.g., a drug) and a delayed release compression coating comprising a natural or synthetic gum applied onto the surface of the core.
    Type: Application
    Filed: September 17, 2004
    Publication date: May 26, 2005
    Applicant: Penwest Pharmaceuticals Co.
    Inventors: Anand Baichwal, Paul Woodcock, Raymond Higgins, Jaclyn Cobb
  • Publication number: 20040241233
    Abstract: Sustained release oral solid dosage forms comprising agglomerated particles of a therapeutically active medicament in amorphous form, a gelling agent, an ionizable gel strength enhancing agent and an inert diluent, as well as processes for preparing and using the same are disclosed. The sustained release oral solid dosage forms are useful in the treatment of hypertension in human patients.
    Type: Application
    Filed: January 27, 2004
    Publication date: December 2, 2004
    Applicant: Penwest Pharmaceuticals Co.
    Inventor: Anand Baichwal