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Last Updated: September 27, 2021

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Details for Patent: 6,441,168


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Which drugs does patent 6,441,168 protect, and when does it expire?

Patent 6,441,168 protects BEYAZ and is included in one NDA.

This patent has forty-seven patent family members in eighteen countries.

Summary for Patent: 6,441,168
Title: Stable crystalline salts of 5-methyltetrahydrofolic acid
Abstract:This invention relates to stable crystalline salts of 5-methyl-(6R,S)-, -(6S)- and -(6R)-tetrahydrofolic acid, to methods of producing these salts and to the use thereof use as a constituent for the production of drugs or as a food additive, and to preparations containing these salts.
Inventor(s): Muller; Rudolf (Schaffhausen, CH), Moser; Rudolf (Schaffhausen, CH), Egger; Thomas (Effretikon, CH)
Assignee: Eprova AG (Schaffhausen, CH)
Application Number:09/551,405
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 6,441,168
Patent Claim Types:
see list of patent claims
Compound; Use; Formulation;

Drugs Protected by US Patent 6,441,168

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Bayer Hlthcare BEYAZ drospirenone; ethinyl estradiol; levomefolate calcium TABLET;ORAL 022532-001 Sep 24, 2010 AB RX No No ⤷  Try it Free ⤷  Try it Free Y ⤷  Try it Free
>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: 6,441,168

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Switzerland695/99Apr 15, 1999

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Serving leading biopharmaceutical companies globally:

Boehringer Ingelheim
Mallinckrodt
McKesson
Dow
Moodys
Express Scripts

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