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Serving leading biopharmaceutical companies globally:

Federal Trade Commission
Cantor Fitzgerald
Harvard Business School

Generated: November 25, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,827,529

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Summary for Patent: 5,827,529

Title: External preparation for application to the skin containing lidocaine
Abstract:An external preparation for application to the skin containing lidocaine which comprises a drug-retaining layer placed on a support, wherein said drug-retaining layer comprises an adhesive gel base and 1 to 10% by weight of lidocaine, said base comprising a water-soluble high molecular weight substance, water and a water-retaining agent, which can release the active lidocaine gradually and constantly so that lidocaine is transdermally absorbed for a long period of time.
Inventor(s): Ono; Masahiro (Kagawa-ken, JP), Akazawa; Mitsuji (Kagawa-ken, JP), Seki; Michiko (Kagawa-ken, JP), Iwamoto; Kiyomi (Kagawa-ken, JP), Konishi; Ryoji (Kagawa-ken, JP)
Assignee: Teikoku Seiyaku Kabushiki Kaisha (Kagawa-Ken, JP)
Application Number:08/258,378
Patent Claim Types:
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Compound; Composition;

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Foreign Priority and PCT Information for Patent: 5,827,529

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan3-067353Mar 30, 1991

International Patent Family for Patent: 5,827,529

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria149351► Subscribe
Canada2064325► Subscribe
Germany69217685► Subscribe
European Patent Office0507160► Subscribe
Spain2100970► Subscribe
Japan3115625► Subscribe
JapanH04305523► Subscribe
Singapore50517► 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:

Johnson and Johnson
Boehringer Ingelheim
Cantor Fitzgerald

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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