Active substance-containing patch
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 23, 1998
Grant Date -
N/A
app pub date -
Aug 5, 1996
filing date -
Dec 4, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An active substance-containing patch for the controlled release of active substances, comprising a backing layer, an adjoining active substance-containing reservoir layer softening at body temperature, a membrane controlling the active substance release, a pressure-sensitive adhesive device permitting fixation of the patch to the skin, and a removable protective layer, is characterized by the fact that the reservoir layer which softens at body temperature is spaced away from the controlling membrane by means of a device made of a material impermeable to the active substance which extends all over the mutually facing surfaces of the reservoir and the membrane and which has at least one passage for the reservoir layer which softens at body temperature.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully