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Daiichi Sankyo
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Generated: May 26, 2018

DrugPatentWatch Database Preview

Details for Patent: 5,591,452

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Summary for Patent: 5,591,452
Title: Controlled release formulation
Abstract:A controlled release preparation for oral administration contains tramadol, or a pharmaceutically acceptable salt thereof, as active ingredient.
Inventor(s): Miller; Ronald B. (Basel, CH), Leslie; Stewart T. (Cambridge, GB2), Malkowska; Sandra T. A. (Cambridgeshire, GB2), Smith; Kevin J. (Cambridge, GB2), Wimmer; Walter (Limburg, DE), Winkler; Horst (Linter, DE), Hahn; Udo (Nentershausen, DE), Prater; Derek A. (Cambridge, GB2)
Assignee: Euro-Celtique, S.A. (Luxembourg, LU)
Application Number:08/241,129
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 5,591,452
Patent Claim Types:
see list of patent claims
Composition; Formulation; Compound; Dosage form;

Drugs Protected by US Patent 5,591,452

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

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Foreign Priority and PCT Information for Patent: 5,591,452

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany43 15 525.1May 10, 1993
United Kingdom9324045Nov 23, 1993
United Kingdom9404544Mar 09, 1994
United Kingdom9404928Mar 14, 1994

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Serving hundreds of leading biopharmaceutical companies globally:

Federal Trade Commission
Medtronic
Merck
Cerilliant
Queensland Health
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Teva
US Department of Justice
Julphar

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