Patents Represented by Attorney Craig D. Simon

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  • Granular sustained release preparation and production thereof
    Patent number: 7790201
    Abstract: There is disclosed a novel sustained release granular resin-pharmaceutical composition comprising an ion exchange resin complexed with a pharmaceutical material wherein said complex is embedded into and on the surface of a diffusion barrier material. There is also disclosed a novel process for preparing the granulated complex wherein an aqueous granulating vehicle is employed to form the complex and the granulated product, thereby avoiding the use of coatings and large amounts of organic solvents in the process.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: September 7, 2010
    Assignee: Mallinckrodt Inc.
    Inventors: Siva N. Raman, John P. Cunningham