US Patent

US9463289 — Dose counters for inhalers, inhalers and methods of assembly thereof

Formulation · Assigned to Teva Pharmaceuticals Ireland · Expires 2031-05-18 · 5y remaining

Vulnerability score 31/100 Strong — defensible against typical IPR challenges

What this patent protects

This patent protects a manually operated metered dose inhaler with a dose counter that unwinds a tape as the inhaler is used.

USPTO Abstract

A manually operated metered dose inhaler includes a dose counter chamber including a dose display tape driven by a ratchet wheel which is driven in turn by an actuator pawl actuated by movement of a canister, the tape unwinding from a stock bobbin during use of the inhaler, a rotation regulator being provided for the stock bobbin and including a wavelike engagement surface with concavities which engage against control elements in the form of protrusions on resilient forks of a split pin thereby permitting incremental unwinding of the stock bobbin yet resisting excessive rotation if the inhaler is dropped onto a hard surface.

Drugs covered by this patent

Patent Metadata

Patent number
US9463289
Jurisdiction
US
Classification
Formulation
Expires
2031-05-18
Drug substance claim
No
Drug product claim
Yes
Assignee
Teva Pharmaceuticals Ireland
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.