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Generated: November 17, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,957,119

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Summary for Patent: 4,957,119

Title: Contraceptive implant
Abstract:The invention relates to an implant of polymeric material which can release a contraceptive agent for a relatively long time when fitted subcutaneously or locally. The implant comprises a core material of ethylene/vinyl acetate copolymer which functions as a matrix for a contraceptive substance, an ethylene/vinyl acetate membrane encasing the core material, and a contact layer at the interface of the core material and membrane which prevents the separation of the core material from the membrane. The implant of the invention is made by a co-extrusion process.
Inventor(s): de Nijs; Hendrik (Oss, NL)
Assignee: Akzo N.V. (Arnhem, NL)
Application Number:07/229,066
Patent Claim Types:
see list of patent claims
Device; Use;

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Foreign Priority and PCT Information for Patent: 4,957,119

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Netherlands8701868Aug 08, 1987

International Patent Family for Patent: 4,957,119

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
China1024753► Subscribe
Finland883594► Subscribe
Denmark173166► Subscribe
Denmark438688► Subscribe
Germany19975054► Subscribe
Germany3879031► Subscribe
European Patent Office0303306► SubscribeSPC/GB99/044United Kingdom► Subscribe
European Patent Office0303306► SubscribeC980027Netherlands► Subscribe
European Patent Office0303306► Subscribe099C0041Belgium► Subscribe
European Patent Office0303306► Subscribe29/1999Austria► 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:

McKesson
Cantor Fitzgerald
Moodys
Merck
Dow
Cerilliant
Chinese Patent Office
UBS
Teva
Daiichi Sankyo

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

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