EP Patent

EP2438910A1 — Microemulsion & sub-micron emulsion process & compositions

Assigned to Stiefel Research Australia Pty Ltd · Expires 2012-04-11 · 14y expired

What this patent protects

An oil in water microemulsion or sub-micron emulsion composition for dermal delivery of at least one pharmaceutically active ingredient comprising an oil phase dispersed throughout a water phase, said oil phase including at least one of the group consisting of animal, mineral or …

USPTO Abstract

An oil in water microemulsion or sub-micron emulsion composition for dermal delivery of at least one pharmaceutically active ingredient comprising an oil phase dispersed throughout a water phase, said oil phase including at least one of the group consisting of animal, mineral or vegetable oils, silanes, siloxanes, esters, fatty acids, fats, halogen compounds, and alkoxylated alcohols; and at least one lipophilic surfactant; and said water phase including at least one hydrophilic surfactant, water and optionally non-surfactant amphiphilic compound, the weight ratio of the at least one hydrophilic surfactant to the at least one lipophilic surfactant being approximately 9.0:1.0 to 2.0:3.0.

Drugs covered by this patent

Patent Metadata

Patent number
EP2438910A1
Jurisdiction
EP
Classification
—
Expires
2012-04-11
Drug substance claim
No
Drug product claim
No
Assignee
Stiefel Research Australia Pty Ltd
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.

Track this patent

Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.