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US Patent 5215520 - Method for delivering an active substance topically or percutaneously
US Patent Issued on June 1, 1993
Estimated Patent Expiration Date:
September 17, 2011Estimated 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.
Estimated Patent Expiration Date:
September 17, 2011Estimated 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.AbstractA 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
| 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 therapyField of Search604/20Infrared, visible light, ultraviolet, X-ray or electrical energy applied to body (e.g., iontophoresis, etc.)ExaminersPrimary: Cohen, Lee S.Assistant: Jastrzab, Jeffrey R. Attorney, Agent or FirmUS Patent References3964477, Method of using electrodes having antiseptic properties for LIDC therapyIssued on: 06/22/1976 Inventor: Ellis , et al.4141359, Epidermal iontophoresis device Issued on: 02/27/1979 Inventor: Jacobsen , et al.4301794, Method for iontophoretic treatment Issued on: 11/24/1981 Inventor: Tapper4406658, Iontophoretic device with reversible polarity Issued on: 09/27/1983 Inventor: Lattin , et al.4474570, Iontophoresis device Issued on: 10/02/1984 Inventor: Ariura , et al.4764164, Iontophoresis device Issued on: 08/16/1988 Inventor: Sasaki4878892Electrolytic transdermal delivery of polypeptides Issued on: 11/07/1989 Inventor: Sibalis, et al. Foreign Patent References
International ClassA61N 001/30 |
