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|Title:||Device for administering an active agent to the skin or mucosa|
|Abstract:||A transdermal drug delivery device comprising a drug formulation-containing reservoir defined by a backing layer and a drug-permeable membrane layer, a ring-shaped layer made of an adhesive that is incompatible with one or more components of the drug formulation that is peripheral to the reservoir outwardly of the membrane layer and a peelable liner layer that underlies at least the membrane layer with a first heat seal between the backing and the membrane about the perimeter of the reservoir and another concentric heat seal between the backing and the release liner positioned outwardly of the first heat seal, the heat seals providing barriers that isolate the drug formulation from the adhesive.|
|Inventor(s):||Chang; Yunik (Toms River, NJ), Patel; Dinesh C. (Murray, UT), Ebert; Charles D. (Salt Lake City, UT)|
|Assignee:||TheraTech Inc. (Salt Lake City, UT)|
Patent Claim Types:|
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|Country||Document Number||Estimated Expiration||Supplementary Protection Certificate||SPC Country||SPC Expiration|
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.
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