GB Patent

GB2269992A — Powder inhalation formulations

Assigned to Rhone Poulenc Rorer Ltd · Expires 1994-03-02 · 32y expired

What this patent protects

A powder composition for inhalation comprising at least one microfine drug and a carrier, in which at least a portion of the said carrier comprises an antistatic agent such as a sorbitan fatty acid ester, a polyoxyethylene sorbitan fatty acid ester, dioctyl sodium sulphosuccinate…

USPTO Abstract

A powder composition for inhalation comprising at least one microfine drug and a carrier, in which at least a portion of the said carrier comprises an antistatic agent such as a sorbitan fatty acid ester, a polyoxyethylene sorbitan fatty acid ester, dioctyl sodium sulphosuccinate or a fatty amine salt of an alkylarylsulphonic acid. Span 85 (RTM) is the preferred additive.

Drugs covered by this patent

Patent Metadata

Patent number
GB2269992A
Jurisdiction
GB
Classification
—
Expires
1994-03-02
Drug substance claim
No
Drug product claim
No
Assignee
Rhone Poulenc Rorer 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.

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.