US Patent 6890553 Exothermic topical delivery device
Patent 6890553 was granted and assigned to Johnson & Johnson on May, 2005 by the United States Patent and Trademark Office.
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Patent abstract
The present invention relates to an exothermic device for topically delivering an active agent comprising a liquid reservoir comprising water, a heating element comprising an oxidizable material, an oxygen-permeable outer-layer, an active agent, and a water-impermeable layer, wherein upon the rupturing of the liquid reservoir, the water contacts the heating element and the oxygen to create and exothermic reaction.
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Patent Inventor Names
Jonas C. T. Wang0
Ralph W. Oakeson0
Stephen J. Wisniewski0
Ying Sun0
Date of Patent
May 10, 2005
0Patent Application Number
096123570
Date Filed
July 7, 2000
0Patent Primary Examiner
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US Patent 6890553 Exothermic topical delivery device
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