Patents by Inventor Ronald S. Vladyka, Jr.
Ronald S. Vladyka, Jr. 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: 12178912Abstract: A dry granulation process using a twin-screw extruder for granulating a powder mixture which includes at least one active ingredient and at least one carrier. The process includes steps of kneading the powder mixture in the screw barrel of the twin-screw extruder at a barrel temperature below a melting point of the at least one active ingredient and a melting point or a glass transition temperature of the at least one carrier to provide a kneaded powder mixture, and extruding the kneaded powder mixture to form granules. Granules and tablets produced using the dry granulation process in the twin-screw extruder are also provided.Type: GrantFiled: December 5, 2022Date of Patent: December 31, 2024Assignees: R.P. Scherer Technologies, LLC, UNIVERSITY OF MISSISSIPPIInventors: Sampada Bhaskar Upadhye, Ronald S. Vladyka, Michael Andrew Repka, Jun-Bom Park, Roshan Vijay Tiwari, Hemlata Gunga Patil, Joseph Thomas Morott, Jr., Wenli Lu
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Patent number: 8496967Abstract: A solid pharmaceutical composition containing AP23573 suitable for oral administration is disclosed.Type: GrantFiled: December 23, 2009Date of Patent: July 30, 2013Assignee: ARIAD Pharmaceuticals, Inc.Inventors: Ronald S. Vladyka, Jr., David C. Dalgarno, John D. Iuliucci
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Publication number: 20100247643Abstract: A solid pharmaceutical composition containing AP23573 suitable for oral administration is disclosed.Type: ApplicationFiled: December 23, 2009Publication date: September 30, 2010Applicant: ARIAD Pharmaceuticals, Inc.Inventors: Ronald S. Vladyka, JR., David C. Dalgarno, John D. Iuliucci
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Patent number: 6858725Abstract: Granulation of microcrystalline cellulose with a granulating fluid consisting of water and a water-miscible, volatile, polar organic solvent yields porous granules which are comprised of particles that are larger than the ungranulated microcrystalline cellulose. This granulated microcrystalline cellulose is capable of cushioning controlled release particles and barrier coated particles from the compression forces used in tableting, thereby maintaining the physical integrity of the components of the tablet.Type: GrantFiled: November 9, 2000Date of Patent: February 22, 2005Assignee: R.P. Scherer Technologies, Inc.Inventors: Ronald S. Vladyka, Jr., David F. Erkoboni, Christopher A. Sweriduk
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Patent number: 6596312Abstract: The present invention provides a method for preparing a spray-dried, compressible granular formulation for preparing pharmaceutical tablets in which essentially water-insoluble, acidic, amphoteric, and basic pharmaceutically active agents are converted to more water-soluble salts which are granulated with hydrolyzed cellulose, drug-containing slurries, the resulting granulations, capsules containing granulations, and pharmaceutical tablets compressed from such granules. In these formulations there is employed from 1% to 85% by weight of the pharmaceutically active agent and its salt form, from 5% to 99% of hydrolyzed cellulose, based on the dry weight of the granulation, and optionally, conventional granulation and/or tableting additives such as surfactants, disintegrants, and antiadherents/flow aids. Said tablets have significantly increased dissolution of the pharmaceutically active agent at the pH of the gastrointestinal tract in comparison with the unconverted free pharmaceutically active agent.Type: GrantFiled: September 26, 2000Date of Patent: July 22, 2003Assignee: R.P. Scherer Technologies, Inc.Inventors: David F. Erkoboni, Ronald S. Vladyka, Jr., Christopher A. Sweriduk, Andrew J. Favara
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Patent number: 6511681Abstract: A formulation of a sparingly water-soluble, crystalline pharmaceutically active agent wherein the active agent is converted to and stabilized in its amorphous form as a solid solution of a normally hydrophobic vehicle is described. The amorphous state is stabilized by the composition of the formulation, providing long shelf life of the improved composition. This stabilized formulation also provides increased solubility and bioavailability of the active agent. Solutions of the active agent are stabilized by the composition, preventing recrystallization and precipitation of the less soluble, crystalline form of the active agent from aqueous solutions thereof.Type: GrantFiled: June 21, 2001Date of Patent: January 28, 2003Assignee: R.P. Scherer Technologies, Inc.Inventors: Ronald S. Vladyka, Jr., David F. Erkoboni, Pamela R. Stergios
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Patent number: 6497905Abstract: A formulation of a sparingly water-soluble, crystalline pharmaceutically active agent wherein the active agent is converted to and stabilized in its amorphous form as a solid solution of a normally hydrophobic vehicle is described. The amorphous state is stabilized by the composition of the formulation, providing long shelf life of the improved composition. This stabilized formulation also provides increased solubility and bioavailability of the active agent. Solutions of the active agent are stabilized by the composition, preventing recrystallization and precipitation of the less soluble, crystalline form of the active agent from aqueous solutions thereof.Type: GrantFiled: March 20, 2000Date of Patent: December 24, 2002Assignee: R.P. Scherer Technologies, Inc.Inventors: Ronald S. Vladyka, Jr., David F. Erkoboni, Pamela R. Stergios
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Patent number: 6379707Abstract: A formulation of a sparingly water-soluble, crystalline pharmaceutically active agent wherein the active agent is converted to and stabilized in its amorphous form as a solid solution of a normally hydrophobic vehicle is described. The amorphous state is stabilized by the composition of the formulation, providing long shelf life of the improved composition. This stabilized formulation also provides increased solubility and bioavailability of the active agent. Solutions of the active agent are stabilized by the composition, preventing recrystallization and precipitation of the less soluble, crystalline form of the active agent from aqueous solutions thereof.Type: GrantFiled: June 21, 2001Date of Patent: April 30, 2002Assignee: FMC CorporationInventors: Ronald S. Vladyka, Jr., David F. Erkoboni, Pamela R. Stergios
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Patent number: 5904937Abstract: The present invention discloses the taste masking of drugs by wet granulating the drug with a microcrystaline cellulose compositions then spheronizing the granulation into spheres having a smooth uniform surface and a particle size in the range of 1 to 1000 microns.Type: GrantFiled: October 3, 1997Date of Patent: May 18, 1999Assignee: FMC CorporationInventors: Michael Augello, Ronald S. Vladyka, Jr., Sheila M. Dell
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Patent number: 5858409Abstract: The present invention provides a method for preparing a spray-dried compressible granular formulation for preparing pharmaceutical tablets in which hydrolyzed cellulose is used as a granulation aid, the resulting granulations, and pharmaceutical tablets compressed from such granules. In these formulations there is employed from 1 to 97% by weight pharmaceutical active, from about 3 to 99% by weight hydrolyzed cellulose, based on the dry weight of the granulation, and optionally conventional granulation and/or tableting additives such as surfactants, disintegrants and antiadherents/flow aids.Type: GrantFiled: April 17, 1996Date of Patent: January 12, 1999Assignee: FMC CorporationInventors: Marc S. Karetny, David F. Erkoboni, Ronald S. Vladyka, Jr., Howard J. Stamato