EP Patent

EP0262422A1 — Sustained release dosage form

Assigned to Teikoku Seiyaku Co Ltd · Expires 1988-04-06 · 38y expired

What this patent protects

A drug reservoir containing an active substance such as a drug is formed on an adhesive layer which can adhere to an oral mucosal membrane. A polymer, which does not dissolve with saliva, is further coated on the drug reservoir as a drug release controlling layer to form an entir…

USPTO Abstract

A drug reservoir containing an active substance such as a drug is formed on an adhesive layer which can adhere to an oral mucosal membrane. A polymer, which does not dissolve with saliva, is further coated on the drug reservoir as a drug release controlling layer to form an entire oral cavity sustained release dosage form. A drug impermeable layer can be formed between the adhesive layer and the drug reservoir.

Drugs covered by this patent

Patent Metadata

Patent number
EP0262422A1
Jurisdiction
EP
Classification
—
Expires
1988-04-06
Drug substance claim
No
Drug product claim
No
Assignee
Teikoku Seiyaku Co 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.

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