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Serving leading biopharmaceutical companies globally:

McKesson
US Army
Chubb
Farmers Insurance
Accenture
Citi
Merck
Express Scripts
Deloitte
Harvard Business School

Generated: February 22, 2018

DrugPatentWatch Database Preview

Details for Patent: 8,481,565

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Which drugs does patent 8,481,565 protect, and when does it expire?

Patent 8,481,565 protects ARICEPT and is included in one NDA.

This patent has thirty-six patent family members in fifteen countries.
Summary for Patent: 8,481,565
Title:Method for stabilizing anti-dementia drug
Abstract: The present invention provides a method for stabilizing an anti-dementia drug in a pharmaceutical composition containing the anti-dementia drug and a high molecular weight basic substance by adding a high molecular weight acidic substance to said pharmaceutical composition. Further, the present invention provides a pharmaceutical composition containing an anti-dementia drug and a high molecular basic substance in which a high molecular weight acidic substance is contained for stabilizing the anti-dementia drug. Furthermore, the present invention provides a method for manufacturing a pharmaceutical composition which comprises steps wherein a solution or suspension containing a high molecular weight acidic substance is added to a mixture of an anti-dementia drug and a high molecular weight basic substance for the sake of stabilizing the anti-dementia drug.
Inventor(s): Ueki; Yosuke (Kakamigahara, JP), Suzuki; Yasuyuki (Kakamigahara, JP), Fujioka; Satoshi (Kakamigahara, JP)
Assignee: Eisai R&D Management Co., Ltd. (Tokyo, JP)
Application Number:11/793,722
Patent Claim Types:
see list of patent claims
Composition;

Drugs Protected by US Patent 8,481,565

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted
Eisai Inc ARICEPT donepezil hydrochloride TABLET;ORAL 022568-001 Jul 23, 2010 AB RX Yes Yes ➤ Try a Free Trial ➤ Try a Free Trial Y ➤ Try a Free Trial
Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted

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Foreign Priority and PCT Information for Patent: 8,481,565

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan2004-376770Dec 27, 2004
Japan2005-041492Feb 18, 2005
PCT Information
PCT FiledDecember 27, 2005PCT Application Number:PCT/JP2005/024254
PCT Publication Date:July 06, 2006PCT Publication Number: WO2006/070930

Non-Orange Book US Patents Family Members for Patent 8,481,565

For Orange Book-listed patents (shown in the main table above) generic applications must certify that the listed patents are expired, invalid, or will not be infringed by generic entry.

The non-Orange Book patents listed below do not require formal certifications, so they do not automatically impede generic entry. Instead, they represent potential opportunities for branded firms to block generic entry through patent infringment challenges.

Patent No. Title Estimated Patent Expiration
8,507,527 Method for stabilizing anti-dementia drug ➤ Try a Free Trial
Patent No. Title Estimated Patent Expiration

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International Patents Family Members for US Patent 8,481,565

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada 2592102 ➤ Try a Free Trial
Canada 2592605 ➤ Try a Free Trial
Australia 2005320609 ➤ Try a Free Trial
China 101090738 ➤ Try a Free Trial
China 101090737 ➤ Try a Free Trial
China 103550190 ➤ Try a Free Trial
European Patent Office 1830886 ➤ Try a Free Trial
European Patent Office 1832298 ➤ Try a Free Trial
Hong Kong 1112399 ➤ Try a Free Trial
Israel 183650 ➤ Try a Free Trial
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

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Serving hundreds of leading biopharmaceutical companies globally:

Argus Health
Johnson and Johnson
AstraZeneca
Medtronic
Cipla
Accenture
QuintilesIMS
Farmers Insurance
Chubb

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