US Patent

US9469643 — Polymorphic forms of (S)-2-(1-(9H-purin-6-ylamino)propyl)-5-fluoro-3-phenylquinazolin-4(3H)-one

Composition of Matter · Assigned to Gilead Calistoga LLC · Expires 2033-09-02 · 7y remaining

Vulnerability score 4/100 Ironclad — strong claim type, well-established, deep family

What this patent protects

This patent protects polymorphic forms of the compound (S)-2-(1-(9H-purin-6-ylamino)propyl)-5-fluoro-3-phenylquinazolin-4(3H)-one.

USPTO Abstract

Polymorphs of (S)-2-(1-(9H-purin-6-ylamino)propyl)-5-fluoro-3-phenylquinazolin-4(3H)-one, compositions thereof, methods for their preparation, and methods for their use are disclosed.

Drugs covered by this patent

Patent Metadata

Patent number: US9469643
Jurisdiction: US
Classification: Composition of Matter
Expires: 2033-09-02
Drug substance claim: Yes
Drug product claim: No
Assignee: Gilead Calistoga LLC
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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