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Serving hundreds of leading biopharmaceutical companies globally:

Generated: April 26, 2018

DrugPatentWatch Database Preview

Details for Patent: 5,344,658

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Summary for Patent: 5,344,658

Title:	Process and composition using ondansetron
Abstract:	The invention relates to a process for reducing the crystal size of ondansetron hydrochloride dihydrate produced by crystallisation from solvent to a size which is suitable for effective distribution in a tablet blend, in particular 100% less that 250 .mu.m. The ondansetron hydrochloride dihydrate is desolvated by drying at elevated temperature and reduced or atmospheric pressure and is then rehydrated.
Inventor(s):	Collin; David T. (Ware, GB2)
Assignee:	Glaxo Group Limited (London, GB2)
Application Number:	08/005,736
Patent Claim Types: see list of patent claims	Compound; Dosage form; Process; Composition;

Drugs Protected by US Patent 5,344,658

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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	Patent Submitted
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

Foreign Priority and PCT Information for Patent: 5,344,658

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
United Kingdom	89148043	Jun 28, 1989

International Family Members for US Patent 5,344,658

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Country	Document Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Canada	2019944	➤ Sign Up
Germany	69011786	➤ Sign Up
Denmark	0415522	➤ Sign Up
European Patent Office	0415522	➤ Sign Up
Country	Document Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration

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