GB Patent

GB2240337A — Aerosol carriers

Assigned to NAT RES DEV · Expires 1991-07-31 · 35y expired

What this patent protects

Pharmaceutical excipients useful in dry powder inhalents comprise particles having a rugosity (measured by air permeametry) of less than 1.75. The use of these carriers increases the amount of drug injested by the patient using a dry powder inhaler. The preferred excipients are c…

USPTO Abstract

Pharmaceutical excipients useful in dry powder inhalents comprise particles having a rugosity (measured by air permeametry) of less than 1.75. The use of these carriers increases the amount of drug injested by the patient using a dry powder inhaler. The preferred excipients are crystalline sugars such as lactose which may conveniently be prepared by controlled crystallisation from an aqueous medium.

Drugs covered by this patent

Patent Metadata

Patent number
GB2240337A
Jurisdiction
GB
Classification
—
Expires
1991-07-31
Drug substance claim
No
Drug product claim
No
Assignee
NAT RES DEV
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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