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).
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Patent number: 9028870Abstract: 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: GrantFiled: December 27, 2010Date of Patent: May 12, 2015Assignee: 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
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Publication number: 20110182947Abstract: 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: ApplicationFiled: December 27, 2010Publication date: July 28, 2011Inventors: Leah E. Appel, Ronald A. Beyerinck, Mark B. Chidlaw, William J. Curatolo, Dwayne T. Friesen, Kelly L. Smith, Avinash G. Thombre
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Patent number: 7550158Abstract: 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: GrantFiled: March 11, 2004Date of Patent: June 23, 2009Assignee: Bend Research, Inc.Inventors: Leah E. Appel, William J. Curatolo, Scott M. Herbig, James A. S. Nightingale, Avinash G. Thombre
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Publication number: 20080299188Abstract: A controlled release dosage form comprises an immediate release portion and an enteric coated sustained release core.Type: ApplicationFiled: May 14, 2007Publication date: December 4, 2008Inventors: Leah E. Appel, Dwayne T. Friesen, Scott M. Herbig, Avinash G. Thombre
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Patent number: 7030338Abstract: 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: GrantFiled: July 23, 2003Date of Patent: April 18, 2006Assignee: Pfizer, Inc.Inventors: Mark S. Carruthers, Christopher D. Craig, Douglas L. Millard, David D. Newbold, Kenny R. Spence, Avinash G. Thombre
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Patent number: 6984403Abstract: 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: GrantFiled: January 23, 2004Date of Patent: January 10, 2006Assignee: 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
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Patent number: 6899896Abstract: 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: GrantFiled: December 20, 2000Date of Patent: May 31, 2005Assignee: Pfizer IncInventors: 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
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Publication number: 20040175428Abstract: 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: ApplicationFiled: March 11, 2004Publication date: September 9, 2004Applicant: Pfizer Inc.Inventors: Leah E. Appel, William J. Curatolo, Scott M. Herbig, James A.S. Nightingale, Avinash G. Thombre
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Publication number: 20040166157Abstract: The invention pertains to chewable controlled-release multiparticulate pharmaceutical compositions for companion animals and method of making same.Type: ApplicationFiled: February 20, 2004Publication date: August 26, 2004Applicant: Pfizer IncInventor: Avinash G. Thombre
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Publication number: 20040076668Abstract: 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: ApplicationFiled: June 25, 2003Publication date: April 22, 2004Applicant: Pfizer Inc.Inventors: Alfred Berchielli, Patrick D. Daugherity, Sheri L. Shamblin, Avinash G. Thombre, Kenneth C. Waterman
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Publication number: 20040052845Abstract: 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: ApplicationFiled: August 7, 2003Publication date: March 18, 2004Inventors: Leah E Appel, Walter C Babcock, Ronald A Beyerinck, Mark B Chidlaw, William J Curatolo, Dwayne T Friesen, Scott M Herbig, Avinash G Thombre
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Patent number: 6706283Abstract: 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: GrantFiled: January 31, 2000Date of Patent: March 16, 2004Assignee: Pfizer IncInventors: Leah E. Appel, William J. Curatolo, Scott M. Herbig, James A. S. Nightingale, Avinash G. Thombre
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Publication number: 20030175326Abstract: The invention pertains to chewable controlled-release multiparticulate pharmaceutical compositions for companion animals and method of making same.Type: ApplicationFiled: August 6, 2002Publication date: September 18, 2003Inventor: Avinash G. Thombre
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Publication number: 20030086972Abstract: 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: ApplicationFiled: August 1, 2001Publication date: May 8, 2003Inventors: Leah E. Appel, Walter C. Babcock, Ronald A. Beyerinck, Mark B. Chidlaw, William J. Curatolo, Dwayne T. Friesen, Scott M. Herbig, Avinash G. Thombre
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Patent number: 6497899Abstract: 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: GrantFiled: January 18, 2001Date of Patent: December 24, 2002Assignee: Pfizer, Inc.Inventors: Avinash G. Thombre, Larry S. Wigman
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Publication number: 20020034542Abstract: 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: ApplicationFiled: January 18, 2001Publication date: March 21, 2002Inventors: Avinash G. Thombre, Larry S. Wigman
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Publication number: 20020015731Abstract: 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: ApplicationFiled: December 20, 2000Publication date: February 7, 2002Inventors: Leah E. Appel, Ronald A. Beyerinck, Mark B. Chidlaw, William J. Curatolo, Dwayne T. Friesen, Kelly L. Smith, Avinash G. Thombre
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Publication number: 20010044474Abstract: 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: ApplicationFiled: December 20, 2000Publication date: November 22, 2001Inventors: 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
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Patent number: 5697922Abstract: 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: GrantFiled: May 11, 1995Date of Patent: December 16, 1997Assignee: Pfizer Inc.Inventor: Avinash G. Thombre
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Patent number: 5698220Abstract: A device for controlled release of an active substance through one or more asymmetric membranes by diffusion and/or osmotic pumping.Type: GrantFiled: June 5, 1995Date of Patent: December 16, 1997Assignee: Pfizer Inc.Inventors: John R. Cardinal, Scott M. Herbig, Richard W. Korsmeyer, Jeelin Lo, Kelly L. Smith, Avinash G. Thombre