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Last Updated: September 27, 2022

Details for Patent: 6,514,531


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Summary for Patent: 6,514,531
Title: Controlled-release dosage forms comprising zolpidem or a salt thereof
Abstract:The present invention relates to controlled-release dosage forms of zolpidem or salts thereof adapted to release zolpidem over a predetermined time period, according to a biphasic profile of dissolution, where the first phase is an immediate release phase and the second phase is a prolonged release phase and particular embodiments thereof intended to avoid abuse.
Inventor(s): Alaux; Gerard (Beynes, FR), Lewis; Gareth (Dourdan, FR), Andre; Frederic (Antony, FR)
Assignee: Sanofi-Synthelabo (Paris, FR)
Application Number:09/857,154
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 6,514,531
Patent Claim Types:
see list of patent claims
Formulation; Compound; Dosage form; Device; Composition;

Drugs Protected by US Patent 6,514,531

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: 6,514,531

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
98403037Dec 04, 1998
PCT Information
PCT FiledDecember 01, 1999PCT Application Number:PCT/EP99/10454
PCT Publication Date:June 15, 2000PCT Publication Number: WO00/33835

International Family Members for US Patent 6,514,531

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 021535 See Plans and Pricing
Austria 290861 See Plans and Pricing
Australia 2539900 See Plans and Pricing
Australia 771902 See Plans and Pricing
Brazil 9915939 See Plans and Pricing
Canada 2391983 See Plans and Pricing
China 1212838 See Plans and Pricing
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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