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Last Updated: December 2, 2021

DrugPatentWatch Database Preview

Details for Patent: 8,618,142


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Summary for Patent: 8,618,142
Title:Process for the preparation of roflumilast
Abstract: A composition comprising: roflumilast having a purity of greater than or equal to 99% by weight, and N-(3,5-dichloropyrid-4-yl)-3-cyclopropylmethoxy-4-hydroxybenzamide present (relative to roflumilast) in an amount greater than zero and less than 0.1% by weight.
Inventor(s): Kohl; Bernhard (Constance, DE), Mueller; Bernd (Constance, DE), Palosch; Walter (Rielasingen, DE)
Assignee: Takeda GmbH (Constance, DE)
Application Number:13/860,264
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,618,142
Patent Claim Types:
see list of patent claims
Composition; Compound; Dosage form; Formulation;

Drugs Protected by US Patent 8,618,142

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Astrazeneca DALIRESP roflumilast TABLET;ORAL 022522-002 Jan 23, 2018 RX Yes No ⤷  Free Forever Trial ⤷  Free Forever Trial Y ⤷  Free Forever Trial
Astrazeneca DALIRESP roflumilast TABLET;ORAL 022522-001 Feb 28, 2011 AB RX Yes Yes ⤷  Free Forever Trial ⤷  Free Forever Trial Y ⤷  Free Forever Trial
>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: 8,618,142

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
03005245Mar 10, 2003

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