Patents Examined by Isis Ghah
  • Patent number: 6645520
    Abstract: A method is provided for increasing the permeability of skin or mucosal tissue to transdermally administered nonsteroidal anti-inflammatory drugs (NSAIDs). The method involves use of a specified amount of a hydroxide-releasing agent, the amount optimized to increase the flux of the NSAID through a body surface while minimizing the likelihood of skin damage, irritation or sensitization. Formulations and drug delivery systems for co-administering a hydroxide-releasing agent with an NSAID are provided as well.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: November 11, 2003
    Assignee: Dermatrends, Inc.
    Inventors: Tsung-Min Hsu, Eric C. Luo
  • Patent number: 6436432
    Abstract: A wound dressing and delivery system comprising carrier frame that overlaps a heavy absorbent pad on a thin backing of the wound dressing (with the backing sandwiched between the pad and carrier frame) so that the carrier frame and absorbent pad support (e.g., rigidify) the backing to facilitate handling. The carrier frame also has a window over the absorbent pad. Adhesive is provided one major surface of the backing, and the absorbent pad is provided on this major surface. The carrier frame is provided on the opposite major surface to the absorbent pad. The backing is preferably a very thin transparent or translucent elastic polymeric film, and the absorbent pad is relative thick, heavy and stiff and preferably includes hydrocolloid or hydrogel materials. Slits may be provided in the carrier frame to permit one of more portions of the frame to be removed from the backing without removing the entire frame from the backing.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: August 20, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Steven B. Heinecke, Wayne L. Liedtke