GB Patent

GB2140687A — Osmotic drug delivery system

Assigned to Alza Corp · Expires 1984-12-05 · 41y expired

What this patent protects

An osmotic system is disclosed comprising a wall 12, 23 formed in at least a part of a semipermeable material that surrounds a compartment 14. The compartment contains a first osmotic composition 15, 16, 17 comprising a beneficial agent 15, and a second and different osmotic comp…

USPTO Abstract

An osmotic system is disclosed comprising a wall 12, 23 formed in at least a part of a semipermeable material that surrounds a compartment 14. The compartment contains a first osmotic composition 15, 16, 17 comprising a beneficial agent 15, and a second and different osmotic composition 18, 19. A passageway 13 in the wall connects the first composition with the exterior of the system. <IMAGE>

Drugs covered by this patent

Patent Metadata

Patent number
GB2140687A
Jurisdiction
GB
Classification
—
Expires
1984-12-05
Drug substance claim
No
Drug product claim
No
Assignee
Alza Corp
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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