DERMAL DELIVERY DEVICE WITH ULTRASONIC WELD
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United States of America Patent
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Issued Date -
Nov 18, 2010
app pub date -
Jul 10, 2008
filing date -
Jul 10, 2007
priority date (Note) -
Abandoned
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Abstract
A method of enclosing an active ingredient layer between a release liner and a backing layer of a dermal patch by ultrasonically welding a seal between the backing layer and the release liner. A pressure sensitive layer is further provided between the backing layer and release liner.
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