Details for Patent: 7,285,668

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Summary for Patent: 7,285,668

Patent landscape, scope, and claims:

Title:	Process for the crystallization of (R)- or (S)-lansoprazole
Abstract:	The present invention relates to a production method of a crystal of (R)-lansoprazole or (S)-lansoprazole, which includes crystallization at a temperature of about 0.degree. C. to about 35.degree. C. from a C.sub.1-4 alkyl acetate solution containing (R)-lansoprazole or (S)-lansoprazole at a concentration of about 0.1 g/mL to about 0.5 g/mL and the like. According to the production method of the present invention, a crystal of (R)-lansoprazole or (S)-lansoprazole superior in preservation stability can be produced efficiently on an industrial large scale.
Inventor(s):	Hashimoto; Hideo (Kobe, JP), Urai; Tadashi (Kawanishi, JP)
Assignee:	Takeda Pharmaceutical Company Limited (Osaka, JP)
Application Number:	10/432,798
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for patent 7,285,668
Patent Claim Types: see list of patent claims	Use; Formulation;
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Drugs Protected by US Patent 7,285,668

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Patented / Exclusive Use	Submissiondate
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Patented / Exclusive Use	>Submissiondate

Foreign Priority and PCT Information for Patent: 7,285,668

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
Japan	2000-367757	Dec 01, 2000

PCT Information
PCT Filed	November 30, 2001	PCT Application Number:	PCT/JP01/10462
PCT Publication Date:	June 06, 2002	PCT Publication Number:	WO02/44167

International Family Members for US Patent 7,285,668

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