Patents by Inventor Avinash G. Thombre

Avinash G. Thombre 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).

  • Patent number: 9028870
    Abstract: A controlled release dosage form has a coated core with the core comprising a drug-containing composition and a water-swellable composition, each occupying separate regions within the core. The drug-containing composition comprises a low-solubility drug and a drug-entraining agent. The coating around the core is water-permeable, water-insoluble and has at least one delivery port therethrough. A variety of formulations having specific drug release profiles are disclosed.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: May 12, 2015
    Assignee: Bend Research, Inc.
    Inventors: Leah E. Appel, Ronald A. Beyerinck, Mark B. Chidlaw, William J. Curatolo, Dwayne T. Friesen, Kelly L. Smith, Avinash G. Thombre
  • Publication number: 20110182947
    Abstract: A controlled release dosage form has a coated core with the core comprising a drug-containing composition and a water-swellable composition, each occupying separate regions within the core. The drug-containing composition comprises a low-solubility drug and a drug-entraining agent. The coating around the core is water-permeable, water-insoluble and has at least one delivery port therethrough. A variety of formulations having specific drug release profiles are disclosed.
    Type: Application
    Filed: December 27, 2010
    Publication date: July 28, 2011
    Inventors: Leah E. Appel, Ronald A. Beyerinck, Mark B. Chidlaw, William J. Curatolo, Dwayne T. Friesen, Kelly L. Smith, Avinash G. Thombre
  • Patent number: 7550158
    Abstract: Controlled release dosage forms for low solubility drugs are disclosed wherein an amorphous solid dispersion of the drug is coated with a non-dissolving and non-eroding coating that controls the influx of water to the core so as to cause extrusion of a portion of the core, as well as a method of treating a disease or disorder comprising administering such dosage form to a person.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: June 23, 2009
    Assignee: Bend Research, Inc.
    Inventors: Leah E. Appel, William J. Curatolo, Scott M. Herbig, James A. S. Nightingale, Avinash G. Thombre
  • Publication number: 20080299188
    Abstract: A controlled release dosage form comprises an immediate release portion and an enteric coated sustained release core.
    Type: Application
    Filed: May 14, 2007
    Publication date: December 4, 2008
    Inventors: Leah E. Appel, Dwayne T. Friesen, Scott M. Herbig, Avinash G. Thombre
  • Patent number: 7030338
    Abstract: A laser drilling system forms an opening in the coating of a pharmaceutical dosage form and includes an orienting assembly to correctly orient dosage forms, a debris removal assembly to reduce buildup of and reduce exposure to drilling debris and a quality control assembly to verify that the opening formed conforms to predetermined specifications.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: April 18, 2006
    Assignee: Pfizer, Inc.
    Inventors: Mark S. Carruthers, Christopher D. Craig, Douglas L. Millard, David D. Newbold, Kenny R. Spence, Avinash G. Thombre
  • Patent number: 6984403
    Abstract: The present invention is related to an oral dosage form comprising an effective amount of an alkalizing agent and an azithromycin multiparticulate wherein said multiparticulate comprises azithromycin, a glyceride which comprises glyceryl monobehenate, glyceryl dibehenate, glyceryl tribehenate, or a mixture thereof and a poloxamer. Typically, the oral dosage form includes any suitable oral dosing means such as a powder for oral suspension, a unit dose packet or sachet, a tablet or a capsule.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: January 10, 2006
    Assignee: Pfizer Inc.
    Inventors: Timothy A. Hagen, Julian B. Lo, Avinash G. Thombre, Scott M. Herbig, Leah Elizabeth Appel, Marshall David Crew, Dwayne Thomas Friesen, David Keith Lyon, Scott Baldwin McCray, James Blair West
  • Patent number: 6899896
    Abstract: A controlled release dosage form for sertraline has a core comprising a sertraline-containing composition and a water-swellable composition wherein the water-swellable composition is in a separate region within the core. A coating around the core is water-permeable, water-insoluble, and has at least one delivery port therethrough. In one embodiment, the dosage form releases sertraline to the use environment at an average rate of 6 to 10 wt % per hour from the second to the twenth hour after introduction to a use environment and less than about 25 wt % for the first two hours and at least 70 wt % by the twelfth hour, where the percentages correspond to the mass of drug released from the tablet divided by the total mass of drug originally present in the tablet.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: May 31, 2005
    Assignee: Pfizer Inc
    Inventors: William J. Curatolo, Kenneth C. Waterman, Avinash G. Thombre, Michael B. Fergione, Michael C. Roy, Leah A. Appel, Danni Supplee, Dwayne T. Friesen, Mark B. Chidlaw, Ronald A. Beyerinck
  • Publication number: 20040175428
    Abstract: Controlled release dosage forms for low solubility drugs are disclosed wherein an amorphous solid dispersion of the drug is coated with a non-dissolving and non-eroding coating that controls the influx of water to the core so as to cause extrusion of a portion of the core, as well as a method of treating a disease or disorder comprising administering such dosage form to a person.
    Type: Application
    Filed: March 11, 2004
    Publication date: September 9, 2004
    Applicant: Pfizer Inc.
    Inventors: Leah E. Appel, William J. Curatolo, Scott M. Herbig, James A.S. Nightingale, Avinash G. Thombre
  • Publication number: 20040166157
    Abstract: The invention pertains to chewable controlled-release multiparticulate pharmaceutical compositions for companion animals and method of making same.
    Type: Application
    Filed: February 20, 2004
    Publication date: August 26, 2004
    Applicant: Pfizer Inc
    Inventor: Avinash G. Thombre
  • Publication number: 20040076668
    Abstract: The invention provides controlled release pharmaceutical formulations having a coated core with the core comprising a drug-containing composition and a water-swellable composition, each occupying essentially separate regions within the core. The drug-containing composition comprises a PDE4D inhibitor, or a pharmaceutically acceptable salt thereof, preferably (R)-2-[4-({[2-(benzo[1,3]dioxol-5-yloxy)-pyridine-3-carbonyl]-amino}-methyl)-3-fluoro-phenoxy]-propionic acid, or a pharmaceutically acceptable salt thereof, or 2-(4-fluorophenoxy)-N-[4-(1-hydroxy-1-methyl-ethyl)-benzyl]-nicotinamide, or a pharmaceutically acceptable salt thereof, and a drug-entraining agent. The coating around the core is water-permeable, water-insoluble, and has at least one delivery port therethrough.
    Type: Application
    Filed: June 25, 2003
    Publication date: April 22, 2004
    Applicant: Pfizer Inc.
    Inventors: Alfred Berchielli, Patrick D. Daugherity, Sheri L. Shamblin, Avinash G. Thombre, Kenneth C. Waterman
  • Publication number: 20040052845
    Abstract: A controlled release dosage form has a coated core with the core comprising a drug-containing composition and a water-swellable composition, each occupying separate regions within the core. The coating around the core is water-permeable, water-insoluble and has at least one delivery port therethrough. A variety of geometric arrangements are disclosed.
    Type: Application
    Filed: August 7, 2003
    Publication date: March 18, 2004
    Inventors: Leah E Appel, Walter C Babcock, Ronald A Beyerinck, Mark B Chidlaw, William J Curatolo, Dwayne T Friesen, Scott M Herbig, Avinash G Thombre
  • Patent number: 6706283
    Abstract: Controlled release dosage forms for low solubility drugs are disclosed wherein an amorphous solid dispersion of the drug is coated with a non-dissolving and non-eroding coating that controls the influx of water to the core so as to cause extrusion of a portion of the core, as well as a method of treating a disease or disorder comprising administering such dosage form to a person.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: March 16, 2004
    Assignee: Pfizer Inc
    Inventors: Leah E. Appel, William J. Curatolo, Scott M. Herbig, James A. S. Nightingale, Avinash G. Thombre
  • Publication number: 20030175326
    Abstract: The invention pertains to chewable controlled-release multiparticulate pharmaceutical compositions for companion animals and method of making same.
    Type: Application
    Filed: August 6, 2002
    Publication date: September 18, 2003
    Inventor: Avinash G. Thombre
  • Publication number: 20030086972
    Abstract: A controlled release dosage form has a coated core with the core comprising a drug-containing composition and a water-swellable composition, each occupying separate regions within the core. The coating around the core is water-permeable, water-insoluble and has at least one delivery port therethrough. A variety of geometric arrangements are disclosed.
    Type: Application
    Filed: August 1, 2001
    Publication date: May 8, 2003
    Inventors: Leah E. Appel, Walter C. Babcock, Ronald A. Beyerinck, Mark B. Chidlaw, William J. Curatolo, Dwayne T. Friesen, Scott M. Herbig, Avinash G. Thombre
  • Patent number: 6497899
    Abstract: Described are non-friable, rapidly disintegrating, fast-dissolving solid dosage forms that are produced from pharmaceutically acceptable steam extruded polymers. The solid dosage forms dissolve in the mouth and are particularly useful for subjects that require or desire oral medication but have difficulty swallowing standard oral dosage forms such as tablets or in subjects suffering from emesis. The solid dosage forms are also useful for rapid drug delivery as vaginal or rectal suppositories or for oral delivery of veterinary drugs.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: December 24, 2002
    Assignee: Pfizer, Inc.
    Inventors: Avinash G. Thombre, Larry S. Wigman
  • Publication number: 20020034542
    Abstract: Described are non-friable, rapidly disintegrating, fast-dissolving solid dosage forms that are produced from pharmaceutically acceptable steam extruded polymers. The solid dosage forms dissolve in the mouth and are particularly useful for subjects that require or desire oral medication but have difficulty swallowing standard oral dosage forms such as tablets or in subjects suffering from emesis. The solid dosage forms are also useful for rapid drug delivery as vaginal or rectal suppositories or for oral delivery of veterinary drugs.
    Type: Application
    Filed: January 18, 2001
    Publication date: March 21, 2002
    Inventors: Avinash G. Thombre, Larry S. Wigman
  • Publication number: 20020015731
    Abstract: A controlled release dosage form has a coated core with the core comprising a drug-containing composition and a water-swellable composition, each occupying separate regions within the core. The drug-containing composition comprises a low-solubility drug and a drug-entraining agent. The coating around the core is water-permeable, water-insoluble and has at least one delivery port therethrough. A variety of formulations having specific drug release profiles are disclosed.
    Type: Application
    Filed: December 20, 2000
    Publication date: February 7, 2002
    Inventors: Leah E. Appel, Ronald A. Beyerinck, Mark B. Chidlaw, William J. Curatolo, Dwayne T. Friesen, Kelly L. Smith, Avinash G. Thombre
  • Publication number: 20010044474
    Abstract: A controlled release dosage form for sertraline has a core comprising a sertraline-containing composition and a water-swellable composition wherein the water-swellable composition is in a separate region within the core. A coating around the core is water-permeable, water-insoluble, and has at least one delivery port therethrough. In one embodiment, the dosage form releases sertraline to the use environment at an average rate of 6 to 10 wt % per hour from the second to the twenth hour after introduction to a use environment and less than about 25 wt % for the first two hours and at least 70 wt % by the twelfth hour, where the percentages correspond to the mass of drug released from the tablet divided by the total mass of drug originally present in the tablet.
    Type: Application
    Filed: December 20, 2000
    Publication date: November 22, 2001
    Inventors: William J. Curatolo, Kenneth C. Waterman, Avinash G. Thombre, Michael B. Fergione, Michael C. Roy, Leah E. Appel, Danni Supplee, Dwayne T. Friesen, Mark B. Chidlaw, Ronald A. Beyerinck
  • Patent number: 5698220
    Abstract: A device for controlled release of an active substance through one or more asymmetric membranes by diffusion and/or osmotic pumping.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: December 16, 1997
    Assignee: Pfizer Inc.
    Inventors: John R. Cardinal, Scott M. Herbig, Richard W. Korsmeyer, Jeelin Lo, Kelly L. Smith, Avinash G. Thombre
  • Patent number: 5697922
    Abstract: An asymmetric membrane, osmotic, delivery device having coated macroparticulate solubility modifiers. The device comprises a beneficial agent, an osmagent, a coated macroparticulate solubility modifier and an asymmetric membrane that surrounds the device components. The device is useful for dispensing a beneficial agent to an aqueous environment of use. The coated macroparticles modify the solubility of the beneficial agent so that it's release can be controlled. The larger size of the solubility modifier macroparticles provides, for example, a longer release duration than would have been possible with a smaller size.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: December 16, 1997
    Assignee: Pfizer Inc.
    Inventor: Avinash G. Thombre