US Patent

US8163306 — Oral drug delivery system

Formulation · Assigned to Sun Pharma Advanced Research Co Ltd · Expires 2027-09-03 · 1y remaining

Vulnerability score 55/100 Moderate — design-around opportunities exist

What this patent protects

This patent protects an oral drug delivery system, specifically a coated tablet with a removable coating.

USPTO Abstract

An oral drug delivery system comprising a coated tablet having one or more surfaces. The coated tablet further comprises a core and a coating surrounding the core. The core comprises an active ingredient composition comprising at least one active ingredient and a pharmaceutically acceptable excipient and a composition selected from a swellable composition and a reactive composition located in an immediate vicinity of one or more preselected surfaces. The coating is operable to be reliably removed fully from the one or more of the preselected surfaces of the tablet upon contact with an aqueous environment, but not removed from at least one of the surfaces.

Drugs covered by this patent

Patent Metadata

Patent number
US8163306
Jurisdiction
US
Classification
Formulation
Expires
2027-09-03
Drug substance claim
No
Drug product claim
Yes
Assignee
Sun Pharma Advanced Research 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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