Details for Patent: 6,441,168

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):	Rudolf Müller, Rudolf Moser, Thomas Egger
Assignee:	Merck et Cie
Application Number:	US09/551,405
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for patent 6,441,168
Patent Claim Types: see list of patent claims	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

Foreign Priority and PCT Information for Patent: 6,441,168

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
Switzerland	695/99	Apr 15, 1999

International Family Members for US Patent 6,441,168

Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Austria	451372
Austria	496052
Australia	2768900
Australia	782641
Canada	2305926
Switzerland	693905