Patents by Inventor Suk-Zu Song

Suk-Zu Song 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).

  • Collagen-containing sponges as drug delivery compositions for proteins
    Patent number: 5512301
    Abstract: Collagen-containing sponges comprising an absorbable gelatin sponge, collagen, and an active ingredient are disclosed as are methods of enhancing wound healing of external and internal wounds using such sponges.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: April 30, 1996
    Assignee: Amgen Inc.
    Inventors: Suk-Zu Song, Andrew Morawiecki
  • Multi-layered collagen film compositions for delivery of proteins and methods of using same
    Patent number: 5418222
    Abstract: The present invention relates to single and multiple layer collagen films that are useful for improved sustained release delivery of pharmaceuticals.
    Type: Grant
    Filed: June 28, 1994
    Date of Patent: May 23, 1995
    Assignee: Amgen Inc.
    Inventors: Suk-Zu Song, Andrew Morawiecki, Glenn F. Pierce, Colin G. Pitt
  • Collagen-containing sponges as drug delivery compositions for proteins
    Patent number: 5399361
    Abstract: Collagen-containing sponges comprising an absorbable gelatin sponge, collagen, and an active ingredient are disclosed as are methods of enhancing wound healing of external and internal wounds using such sponges.
    Type: Grant
    Filed: June 28, 1994
    Date of Patent: March 21, 1995
    Assignee: Amgen Inc.
    Inventors: Suk-Zu Song, Andrew Morawiecki
  • Methylene pyrrolidone copolymers for contact lens and pharmaceutical preparations
    Patent number: 5035884
    Abstract: A new series of copolymers which are useful as coatings for solid dosage forms, for transdermal devices, for wound dressing materials, and for contact lenses. Also disclosed are methods for preparing monomers and polymers as well as pharmaceutical compositions containing such polymers.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: July 30, 1991
    Assignee: Warner-Lambert Company
    Inventors: Suk-Zu Song, Surendra C. Mehta, Kuchi S. Murthy, Russell U. Nesbitt, Mahdi B. Fawzi
  • Copolymers from n-alkyl-3-alkenylene-2-pyrrolidone
    Patent number: 4931519
    Abstract: A new series of copolymers which are useful as coatings for solid dosage forms, for transdermal devices, for wound dressing materials, and for contact lenses. Also disclosed are methods for preparing monomers and polymers as well as pharmaceutical compositions containing such polymers.
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: June 5, 1990
    Assignee: Warner-Lambert Company
    Inventors: Suk-Zu Song, Surendra C. Mehta, Kuchi S. Murthy, Russell U. Nesbitt, Mahdi B. Fawzi
  • Transdermal drug delivery device comprising copolymers of N-morpholinoethyl methacrylate and 2-hydroxylmethacrylate
    Patent number: 4857313
    Abstract: The invention concerns a novel copolymer of N-morpholinoethyl methacrylate and 2-hydroxyethyl methacrylate which can be used in transdermal delivery systems or in oral controlled release products. The invention also concerns a process for preparing the copolymer and a method of using it to administer pharmaceutically active substances.
    Type: Grant
    Filed: May 28, 1987
    Date of Patent: August 15, 1989
    Assignee: Warner-Lambert Company
    Inventors: Suk-zu Song, Zahra A. Rashidbaigi, Russell U. Nesbitt, Mahdi B. Fawzi
  • N-substituted-3-alkylene-2-pyrrolidone compounds
    Patent number: 4851545
    Abstract: A new series of copolymers such as N-isopropyl-3-methylene-2-pyrrolidone and 2-hydroxyethylmethacrylate which are useful as coatings for solid dosage forms, for transdermal devices, for wound dressing materials, and for contact lenses. Also disclosed are methods for preparing monomers and polymers as well as pharmaceutical compositions containing such polymers.
    Type: Grant
    Filed: June 2, 1987
    Date of Patent: July 25, 1989
    Assignee: Warner-Lambert Company
    Inventors: Suk-Zu Song, Surendra C. Mehta, Kuchi S. Murthy, Russell U. Nesbitt, Mahdi B. Fawzi
  • Silicone elastomer transdermal matrix system
    Patent number: 4814173
    Abstract: A composition for the transmembranal, including transdermal administration of a pharmaceutical preparation comprising medical grade dimethylsiloxane, a catalyst capable of forming an elastomer, a permeation enhancer and a biologically active material, as well as a device for administering the aforementioned compositions and also a method for administering transdermally to a mammal an effective amount of the aforementioned compositions is herein described.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: March 21, 1989
    Assignee: Warner-Lambert Company
    Inventors: Suk-Zu Song, Zahra A. Rashidbaigi, Surendra C. Mehta, Russell U. Nesbitt, Mahdi B. Fawzi
  • Transdermal matrix system
    Patent number: 4789547
    Abstract: A composition for the transmembranal, including transdermal, administration of a pharmaceutical preparation comprising cross-linked carboxymethylcellulose, an alcohol soluble poly (2-hydroxyethyl) methacrylate), a permeation enhancer, such as a mixture of linoleic acid and propylene glycol, and a biologically active material, as well as a device for administering the aforementioned composition to mammals, and also a method for administering transdermally to a mammal an effective amount of the aforementioned composition.
    Type: Grant
    Filed: June 17, 1987
    Date of Patent: December 6, 1988
    Assignee: Warner-Lambert Company
    Inventors: Suk-Zu Song, Surendra C. Mehta, Zahra A. Rashidbaigi, Russell U. Nesbitt, Mahdi B. Fawzi