US Patent

US8329213 — Liposomes useful for drug delivery

Composition of Matter · Assigned to Merrimack Pharmaceuticals Inc · Expires 2027-01-06 · 1y remaining

Vulnerability score 22/100 Ironclad — strong claim type, well-established, deep family

What this patent protects

Merrimack Pharmaceuticals Inc has developed liposome compositions that can contain a substituted ammonium and/or polyanion, and optionally a therapeutic or imaging entity.

USPTO Abstract

The present invention provides liposome compositions containing substituted ammonium and/or polyanion, and optionally with a desired therapeutic or imaging entity. The present invention also provides methods of making the liposome compositions provided by the present invention.

Drugs covered by this patent

Patent Metadata

Patent number
US8329213
Jurisdiction
US
Classification
Composition of Matter
Expires
2027-01-06
Drug substance claim
Yes
Drug product claim
Yes
Assignee
Merrimack Pharmaceuticals Inc
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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