US Patent

US9532955 — Nanocrystals, compositions, and methods that aid particle transport in mucus

Method of Use · Assigned to Johns Hopkins University · Expires 2033-05-03 · 7y remaining

Vulnerability score 45/100 Strong — defensible against typical IPR challenges

What this patent protects

This patent protects methods and compositions that aid in transporting particles through mucus barriers in the body.

USPTO Abstract

Nanocrystals, compositions, and methods that aid particle transport in mucus are provided. In some embodiments, the compositions and methods involve making mucus-penetrating particles (MPP) without any polymeric carriers, or with minimal use of polymeric carriers. The compositions and methods may include, in some embodiments, modifying the surface coatings of particles formed of pharmaceutical agents that have a low water solubility. Such methods and compositions can be used to achieve efficient transport of particles of pharmaceutical agents though mucus barriers in the body for a wide spectrum of applications, including drug delivery, imaging, and diagnostic applications. In certain embodiments, a pharmaceutical composition including such particles is well-suited for administration routes involving the particles passing through a mucosal barrier.

Drugs covered by this patent

FDA Patent Use Codes

When a patent is method-of-use, FDA lists it once per applicable indication ("U-code"). Each U-code carves out a specific therapeutic use that generic filers must either license or design around.

CodeDescriptionDrug
U-2491 — Lotemax
U-2491 — Lotemax

Patent Metadata

Patent number
US9532955
Jurisdiction
US
Classification
Method of Use
Expires
2033-05-03
Drug substance claim
No
Drug product claim
No
Assignee
Johns Hopkins University
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.

Track this patent

Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.