US Patent

US9168304 — Diclofenac topical formulation

Formulation · Assigned to HZNP Ltd · Expires 2027-10-17 · 1y remaining

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

What this patent protects

This patent protects a gel formulation of diclofenac sodium for topical treatment of pain, such as in osteoarthritis.

USPTO Abstract

The present invention provides a gel formulation comprising diclofenac sodium which has superior transdermal flux properties, which may be used for the topical treatment of pain, such as in osteoarthritis.

Drugs covered by this patent

Arthrotec (Diclofenac Sodium) · Pfizer

Patent Metadata

Patent number: US9168304
Jurisdiction: US
Classification: Formulation
Expires: 2027-10-17
Drug substance claim: No
Drug product claim: Yes
Assignee: HZNP 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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