EP Patent

EP0357369A2 — The use of asymetric membranes in delivery devices

Assigned to Pfizer Inc · Expires 1990-03-07 · 36y expired

What this patent protects

A device for controlled release of an active substance through one or more asymmetric membranes by diffusion and/or osmotic pumping.

USPTO Abstract

A device for controlled release of an active substance through one or more asymmetric membranes by diffusion and/or osmotic pumping.

Drugs covered by this patent

Patent Metadata

Patent number
EP0357369A2
Jurisdiction
EP
Classification
—
Expires
1990-03-07
Drug substance claim
No
Drug product claim
No
Assignee
Pfizer 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.

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.