US Patent

US11583643 — Inhalers and related methods

Formulation · Assigned to Norton Waterford Ltd · Expires 2041-08-19 · 15y remaining

Vulnerability score 33/100 Strong — defensible against typical IPR challenges

What this patent protects

This patent protects an inhaler design that includes a canister with a metering valve for delivering pressurized inhalable substances.

USPTO Abstract

An inhaler (10) for the inhalation of inhalable substances comprise: a canister (50) having an interior reservoir (84) containing pressurised inhalable substances including fluid; a metering valve (52) including a metering chamber (82) and a valve stem (54) defining a communication path between the metering chamber and the interior reservoir, the communication path (86) including an opening (106) configured to permit flow between a transfer space inside the valve stem and the interior reservoir, the interior reservoir being arranged for orientation above the metering chamber whereby gas such as air located within the metering chamber is replaced with liquid from the interior reservoir.

Drugs covered by this patent

Patent Metadata

Patent number
US11583643
Jurisdiction
US
Classification
Formulation
Expires
2041-08-19
Drug substance claim
No
Drug product claim
Yes
Assignee
Norton Waterford 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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