Patents by Inventor Leslie L. Chun

Leslie L. Chun 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).

  • Transdermal therapeutic systems for the administration of naloxone, naltrexone and nalbuphine
    Patent number: 4573995
    Abstract: A method for transdermal delivery of naloxone, naltrexone and nalbuphine base through intact skin is described. Preferred embodiments of transdermal therapeutic systems for delivering these drugs and polyethylene glycol monolaurate employ an ethylene vinylacetate matrix containing drug base at a concentration above saturation and polyethylene glycol monolaurate below unit activity. Polyethylene glycol manolaurate is disclosed as a permeation enhancer for the base form of these drugs and is preferably delivered simultaneously with the drug.
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: March 4, 1986
    Assignee: ALZA Corporation
    Inventors: Yu-Ling Chen, Leslie L. Chun, David J. Enscore