Patents Examined by Lee S. Cohan
  • Ultrasound-enhanced delivery of materials into and through the skin
    Patent number: 5323769
    Abstract: A method for enhancing the permeability of the skin or other biological membrane to a material such as a drug is disclosed. In the method, the drug is delivered in conjunction with ultrasound having a frequency of above about 10 MHz. The method may also be used in conjunction with chemical permeation enhancers and/or with iontophoresis.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: June 28, 1994
    Assignees: Cygnus Therapeutic Systems, The Regents of the University of California
    Inventors: Durairaj Bommannan, Hirohisa Okuyama, Richard H. Guy, Paul Stauffer, Gordon L. Flynn