Patents by Inventor Ronald S. Vladyka

Ronald S. Vladyka 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: 6379707
    Abstract: 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: Grant
    Filed: June 21, 2001
    Date of Patent: April 30, 2002
    Assignee: FMC Corporation
    Inventors: Ronald S. Vladyka, Jr., David F. Erkoboni, Pamela R. Stergios
  • Publication number: 20020037324
    Abstract: 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: Application
    Filed: June 21, 2001
    Publication date: March 28, 2002
    Applicant: FMC Corporation
    Inventors: Ronald S. Vladyka, David F. Erkoboni, Pamela R. Stergios
  • Publication number: 20020012706
    Abstract: 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: Application
    Filed: June 21, 2001
    Publication date: January 31, 2002
    Applicant: FMC Corporation
    Inventors: Ronald S. Vladyka, David F. Erkoboni, Pamela R. Stergios
  • Patent number: 5904937
    Abstract: 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: Grant
    Filed: October 3, 1997
    Date of Patent: May 18, 1999
    Assignee: FMC Corporation
    Inventors: Michael Augello, Ronald S. Vladyka, Jr., Sheila M. Dell
  • Patent number: 5858409
    Abstract: 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: Grant
    Filed: April 17, 1996
    Date of Patent: January 12, 1999
    Assignee: FMC Corporation
    Inventors: Marc S. Karetny, David F. Erkoboni, Ronald S. Vladyka, Jr., Howard J. Stamato