Last Updated: August 3, 2026

Details for Patent: 6,673,838

Name: Drug Patent Intelligence for US Patent 6673838
Creator: DrugPatentWatch
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Summary for Patent: 6,673,838

Title:	Succinate salt of O-desmethyl-venlafaxine
Abstract:	A novel salt of O-desmethyl venlafaxine is provided, O-desmethylvenlafaxine succinate. Pharmaceutical compositions, dosage forms and methods of use are also provided.
Inventor(s):	Anthony F. Hadfield, Syed M. Shah, Michael W. Winkley, Karen W. Sutherland, James A. Provost, Aeri Park, Rex A. Shipplett, Brenton W. Russell, Beat T. Weber
Assignee:	Siegfried AG , Wyeth LLC , AMRI SSCI LLC
Application Number:	US10/073,743
Patent Claim Types: see list of patent claims	Use; Composition; Formulation; Dosage form;

Drugs Protected by US Patent 6,673,838

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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

International Family Members for US Patent 6,673,838

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Argentina	032671	⤷ Start Trial
Argentina	082076	⤷ Start Trial
Austria	369330	⤷ Start Trial
Australia	2002250058	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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