US Patent

US9662398 — Carboxylvinyl polymer-containing nanoparticle suspensions

Formulation · Assigned to Alcon Research LLC · Expires 2030-12-01 · 5y remaining

Vulnerability score 48/100 Strong — defensible against typical IPR challenges

What this patent protects

This patent protects a suspension composition containing a carboxyvinyl polymer, a galactomannan, a borate compound, and a sparingly soluble particulate compound, such as nepafenac.

USPTO Abstract

The present invention generally relates to suspension compositions having a carboxyvinyl polymer such as a carbomer, a galactomannan such as guar, and a borate compound. A sparingly soluble particulate compound such as nepafenac is also included in the compositions. The sparingly soluble particulate compound has a small particle size to enhance bioavailability of the compound.

Drugs covered by this patent

Patent Metadata

Patent number
US9662398
Jurisdiction
US
Classification
Formulation
Expires
2030-12-01
Drug substance claim
No
Drug product claim
Yes
Assignee
Alcon Research LLC
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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