Patents by Inventor George W. Belenduik

George W. Belenduik 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).

  • Sustained-release drug delivery system
    Patent number: 5484608
    Abstract: A sustained-release pharmaceutical composition comprising a highly soluble pharmaceutical agent, such as selegiline, in a pharmaceutical carrier comprising a hydrophilic polymer dispersed in a hydrophobic matrix. A hydrophilic microenvironment is created in a hydrophobic matrix by incorporating hydrophilic polymers within a hydrophobic matrix. Optionally, a binder, preferably a polyhydroxylated compound, ca also be added.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: January 16, 1996
    Assignee: Pharmavene, Inc.
    Inventors: Edward M. Rudnic, John A. McCarty, George W. Belenduik
  • Multilamellar drug delivery systems
    Patent number: 5447729
    Abstract: A pharmaceutical preparation including a pharmaceutical agent incorporated into particles comprising (i) a core formed from a hydrophilic material, a hydrophobic material or a hydrophobic emulsion or dispersion and (ii) an alternating sequence of hydrophilic/hydrophobic layers thereon such that there is a hydrophilic/hydrophobic interface between the core and each succeeding layer.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: September 5, 1995
    Assignee: PharmaVene, Inc.
    Inventors: George W. Belenduik, Edward M. Rudnic, John A. McCarty
  • Hydrophobic drug delivery systems
    Patent number: 5430021
    Abstract: A pharmaceutical preparation including a drug incorporated into hydrophobic particles comprised of long chain carboxylic acid or ester thereof or long chain alcohol, wherein the particles are incorporated into a unit dosage form and are individually coated with an enteric coating and/or the unit dosage form includes an enteric protective material.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: July 4, 1995
    Assignee: Pharmavene, Inc.
    Inventors: Edward M. Rudnic, John A. McCarty, George W. Belenduik