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Last Updated: December 22, 2024

Details for Patent: 4,138,565


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Summary for Patent: 4,138,565
Patent landscape, scope, and claims:
Title: Stable solutions and processes for their preparation
Abstract:Solutions of certain hydrogenated ergopeptide alkaloids in mixtures of pharmacologically acceptable alcohols and water have improved stability. Preferred solvents are mixtures of ethanol, propylene glycol and glycerol containing from 15-40% wt. of water and having dielectric constants between 34 and 46. With these solutions it is not essential to carry out the filing operation under an inert atmosphere.
Inventor(s): Ehrhardt; Lothar (Nuremberg, DE), Patt; Ludwig (Nuremberg, DE), Hartmann; Volker (Nuremberg, DE)
Assignee: Sandoz Ltd. (Basel, CH)
Application Number:05/833,784
Patent Claim Types:
see list of patent claims
Composition; Formulation; Compound; Use;

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Drugs Protected by US Patent 4,138,565

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

Foreign Priority and PCT Information for Patent: 4,138,565

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany2524184May 31, 1975
Germany2735587Aug 6, 1977

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