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Generated: November 22, 2017

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Details for Patent: 5,240,711

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Summary for Patent: 5,240,711

Title: Transdermal therapeutic system comprising as active component buprenorphine
Abstract:The controlled release of buprenorphine or the pharmaceutically acceptable salts thereof to the skin over a period of time of at least 24 hours is ensured by a transdermal therapeutic system consisting of a backing layer which is impermeable to the active substance, a pressure-sensitive adhesive reservoir layer, and optionally a removable protective layer. Said reservoir layer of said system comprises 20 to 90%-wt polymeric material, 0.1 to 30%-wt softener, 0.1 to 20%-wt buprenorphine base or one of the pharmaceutically acceptable salts thereof, and 0.1 to 30%-wt solvent for the active substance base.
Inventor(s): Hille; Thomas (Neuwied, DE), Deurer; Lothar (Koblenz, DE), Hoffmann; Hans-Rainer (Neuwied, DE)
Assignee: LTS Lohmann Therapie-Systeme GmbH & Co. KG (Neuwied, DE)
Application Number:07/951,030
Patent Claim Types:
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Foreign Priority and PCT Information for Patent: 5,240,711

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany3939376Nov 29, 1989

International Patent Family for Patent: 5,240,711

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria135205► Subscribe
Australia632182► Subscribe
Australia6569990► Subscribe
Canada2030178► Subscribe
Czechoslovakia9005598► Subscribe
Czech Republic282557► Subscribe
Germany3939376► Subscribe
Germany59010192► Subscribe
Denmark0430019► Subscribe
European Patent Office0430019► 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:

US Army
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