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Serving leading biopharmaceutical companies globally:

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Generated: December 13, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,994,267

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Summary for Patent: 4,994,267

Title: Transdermal acrylic multipolymer drug delivery system
Abstract:A dermal composition comprising a drug, a multipolymer of ethylene-vinyl acetate, an acrylic polymer, and optionally one or more monomers, a natural or synthetic rubber and a tackifying agent. The ratio of the multipolymer to the rubber is, respectively, about 1:1 to about 10:1 and more preferably, 1:1 to 5:1 and more preferably 3:1. The dermal composition can optionally contain a crosslinking agent, tackifiers, penetration enhancers and other ingredients known for use in adhesives for the transdermal delivery of drugs. The dermal compositions can be produced by a variety of methods known in the preparation of drug containing adhesive preparations including the homogenous mixing of the multipolymer, drug and optional crosslinking agent and additional ingredients in solution or suspension or emulsion followed by removal of excess solvent.
Inventor(s): Sablotsky; Steven (Miami, FL)
Assignee: Noven Pharmaceuticals, Inc. (Miami, FL)
Application Number:07/295,847
Patent Claim Types:
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International Patent Family for Patent: 4,994,267

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina002355► Subscribe
Austria122240► Subscribe
Austria144704► Subscribe
Austria148633► Subscribe
Austria223185► Subscribe
Austria235898► Subscribe
Austria99175► Subscribe
Austria99176► Subscribe
Australia1461092► Subscribe
Australia1521295► Subscribe
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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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Serving leading biopharmaceutical companies globally:

Fish and Richardson
Express Scripts
Farmers Insurance
Argus Health

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