CA Patent

CA2678125C — Crystalline forms of (6r)-l-erythro-tetrahydrobiopterin dihydrochloride

Assigned to Merck et Cie · Expires 2014-10-14 · 12y expired

What this patent protects

Crystal forms of (6R)-L-erythro-tetrahydrobiopterin dihydrochloride, hydrates and solvates and processes for their preparation are provided. These crystal forms are suitable for solid formulations.

USPTO Abstract

Crystal forms of (6R)-L-erythro-tetrahydrobiopterin dihydrochloride, hydrates and solvates and processes for their preparation are provided. These crystal forms are suitable for solid formulations.

Drugs covered by this patent

Patent Metadata

Patent number
CA2678125C
Jurisdiction
CA
Classification
—
Expires
2014-10-14
Drug substance claim
No
Drug product claim
No
Assignee
Merck et Cie
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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