Method for delivering an active substance topically or percutaneously
Patent 5215520 Issued on June 1, 1993. Estimated Expiration Date: 
September 17, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 17, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod of using electrodes having antiseptic properties for LIDC therapy Epidermal iontophoresis device Method for iontophoretic treatment Iontophoretic device with reversible polarity Iontophoresis device Iontophoresis device Electrolytic transdermal delivery of polypeptides Patent #: 4878892 InventorsAssigneeApplicationNo. 760982 filed on 09/17/1991US Classes:604/20, Infrared, visible light, ultraviolet, X-ray or electrical energy applied to body (e.g., iontophoresis, etc.)607/3Combined with nonelectrical therapyExaminersPrimary: Cohen, Lee S.Assistant: Jastrzab, Jeffrey R. Attorney, Agent or FirmForeign Patent References
International ClassA61N 001/30AbstractA method for the topical or percutaneous administration of a cosmetic or pharmaceutically active substance involves applying an electric current to an area of the skin, ceasing to apply the electric current to this area of the skin and then applying an active substance to at least a part of this area of the skin in the absence of an electric current being applied thereto.Other References
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