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Patent landscape, scope, and claims: |
US Patent 11,344,685: What Is Claimed, What It Covers, and Where the Landscape Sits
What is the core invention in US 11,344,685?
US 11,344,685 claims a cover-actuated, battery-power-managed electronics architecture for an inhaler that avoids an “off” power state after the first-ever opening event. In the claimed system, the electronics module is:
- Off before a user opens the mouthpiece cover the first time (initial use).
- Transitioned to Active/On when a slider actuates a switch as the cover opens.
- Sends the electronics to Sleep when the cover closes after that first use.
- Does not return to Off after the first opening event for the remainder of the battery life.
- Has a defined power relationship: Off consumes less power than Sleep, and Sleep consumes less power than Active/On.
The claims also integrate sensing-based inhalation characterization (pressure sensor, inhalation parameters) and event handling (internal counter, timestamps, dose-counter logic, memory logging, optional wireless transmission).
How broad is Claim 1 (the anchor claim)?
Claim 1 is a system claim that broadly covers any inhaler that has the following structural and functional elements combined:
Structural elements
- Inhaler with:
- Main body
- Mouthpiece
- Mouthpiece cover
- Slider at least partially disposed within the main body
- Electronics module comprising:
Power-state logic (the main differentiator)
Claim 1’s power behavior is specific and layered:
- Electronics module is in Off state prior to first-time cover opening.
- On first opening:
- Slider engages switch
- Electronics transitions Off → Active
- Sensor is used to sense inhalation
- After first-time opening:
- Cover closing causes Active → Sleep
- Re-opening causes Sleep → Active
- Electronics is configured to not return to Off after first use, throughout battery life.
Power consumption relationships
- Off consumes less power than Sleep
- Sleep consumes less power than Active
This makes Claim 1 difficult to avoid if an infringing design uses the same state machine with the “never return to Off after first use” constraint.
What do dependent claims add (and how do they narrow)?
Claims 2 to 12 expand Claim 1 with timing, pressure-based logic, data logging, specific medication sets, and dose/event accounting. The key narrowing levers are internal-counter timestamping, pressure validity windows, parameter set definitions, wireless transmission, and dose-counter decrement mechanics.
Claim-by-claim add-ons
- Claim 2: internal counter starts on Off-to-transition; controller timestamps inhalation or cover opening.
- Claim 3: sensor is a pressure sensor; Sleep is entered when pressure readings are outside a predetermined range for a predetermined time derived from the internal counter.
- Claim 4: memory stores a “timeout event” and associated timestamp when the pressure condition persists.
- Claim 5: medication selection restricted to one of:
- (A) salbutamol sulfate
- (B) fluticasone propionate
- (C) fluticasone propionate and salmeterol
- (D) beclomethasone
- Claim 6: pressure sensor measures pressure after cover moves from closed to open.
- Claim 7: controller drives sensor measurements for a time period or until a detected event.
- Claim 8: inhalation parameters defined as:
- peak flow rate
- time to peak flow rate
- inhaled volume
- inhalation duration
- Claim 9: electronics includes a communications circuit to wirelessly transmit the inhalation parameters.
- Claim 10: controller monitors one or more pins in Off state; sensor is not powered in Off.
- Claim 11: active-state behavior list includes measuring pressure, calculating parameters, storing locally, advertising to an external device, and/or transmitting.
- Claim 12: dose counter decrements each cover open; dose delivery events are recorded each time switch engages and module transitions to Active, or when airflow metric (from sensor) meets threshold/range.
Net effect: Claim 1 is broad on the power-state machine; dependent claims narrow with specific sensing protocol, time-based gating, explicit inhalation parameter set, and specific event capture logic.
What is claimed in Claim 22 (alternate broad system formulation)?
Claim 22 is another system claim that is closely aligned with Claim 1 but re-formulated to emphasize:
- Electronics module can be Off / Sleep / On
- Power consumption ordering:
- Cover first opening keeps module from returning to Off for battery life.
- Slider actuates switch when cover opens.
- After first opening:
- module is Sleep when cover is closed
- transitions to On when cover opens
Claim 23 to 25 narrow Claim 22
- Claim 23: electronics module comprises controller, sensor, memory, wireless communications.
- Claim 24: pressure sensor; On → Sleep when pressure is outside range for predetermined time derived from internal counter.
- Claim 25: internal counter starts when leaving Off; timestamp inhalation or cover opening.
What methods are claimed (Claims 13 to 21)?
The patent includes method claims that mirror the system’s power-state machine and measurement/event processing.
Method Claim 13 (anchor)
Steps include:
- Electronics maintained in Off before first-time opening.
- Slider actuates switch as cover opens.
- Off → Active on first-time cover opening via switch actuation.
- Sense inhalation and deliver dose.
- After first time:
- Active → Sleep on cover close
- Sleep → Active on subsequent cover opens
- No Off state return for battery life
- Off/Sleep/Active power ordering.
Method Claim 14
Dose is made available to a flow channel when cover opens.
Method Claim 15
Internal counter starts during Off-to-active transition; internal counter timestamps inhalation or cover opening.
Method Claims 17 to 21
- Measure pressure for predetermined period or until predetermined event.
- Compute inhalation parameters (peak flow, time to peak, inhaled volume, duration).
- Optional wireless transmission to external device.
- Active-state sequence list includes: measure pressure, compute parameters, store locally, advertise, transmit.
Net effect: method claims broaden enforceability where product use patterns match, even if electronics packaging differs.
Functional “infringement hooks” embedded in the claims
The claim language creates several clear technical hooks that an accused product would need to match:
- Cover-first-use gate
- Off state exists until the first time the mouthpiece cover opens.
- Slider-to-switch actuation
- Opening produces switch engagement via a slider, not just a software trigger.
- Sleep after first use
- After first use, closing leads to sleep.
- No return to Off
- The electronics does not return to Off after first use for the battery life.
- Power tiering
- Off consumes less than Sleep; Sleep less than Active/On.
- Pressure-sensor inhalation profiling (optional via dependents)
- Defined pressure validity windows drive sleep transitions and event logging.
- Parameterized inhalation metrics
- Peak flow rate, time to peak, inhaled volume, inhalation duration.
- Wireless transfer (optional via dependents)
- Transmission or advertising to external device.
- Dose counter logic (dependent)
- Dose decrement on cover opens and event recording tied to switch engagement or airflow threshold.
Scope map: what is covered vs. what is likely outside
Because the claims use explicit functional constraints, designs that diverge on any of the following can create avoidance risk:
Likely to be captured (high alignment)
- Inhalers with a physical cover and mechanical slider that actuates a switch controlling an electronics power state.
- Systems that keep electronics in Off until first open, then later only cycle between Sleep and Active, with Off never re-entered after first open.
- Pressure-sensing inhalation characterization tied to cover open time windows and internal-counter timestamps.
Where designs can fall outside
- Devices that do not create the “never return to Off after first use” behavior (e.g., they always fully power down after each session).
- Designs that do not use a slider and switch combination for opening detection (e.g., purely capacitive or Hall-effect with direct MCU wake and no defined switch actuation chain).
- Systems that do not include the required power relationship among Off, Sleep, Active.
Patent landscape relevance: how this claim set positions against known inhaler telemetry art
The claim set is structured to combine three common inhaler telemetry themes under a specific power-management state machine:
- Cover- or dose-trigger-based wake-up
- Many “smart inhaler” concepts tie electronics to mechanical actuation.
- Inhalation quality metrics from pressure
- Pressure sensing for flow/volume-like metrics is a familiar architecture.
- Wireless communications
- Telemetry to external devices is common.
What distinguishes this patent is the first-use Off gate plus the “no return to Off” lifetime constraint and the defined power-tier ordering. That architecture can cut across prior art that uses:
- wake on opening then return to deep off between uses, or
- always-on electronics with low sleep but no initial “first time” state behavior.
Business implications for freedom-to-operate and portfolio strategy
If you are designing around
- The “no return to Off” constraint is the most operationally risky element. A design that truly returns to Off after each closed interval (including after the first use) can be positioned as materially different from Claim 1/13/22.
- Mechanical implementation details matter: a slider that engages a switch as a cover-opening event is a direct claim feature. Electronic detection without that mechanical switch path may reduce alignment.
If you are assessing acquisition or licensing
- The claim set’s dependent claims create multiple narrower “claim pathways”:
- pressure-based sleep timeouts (Claims 3/4/24),
- timestamping (Claims 2/15/25),
- explicit inhalation parameter set (Claims 8/19),
- wireless parameter transmission (Claims 9/20/21/23),
- and dose-counter decrement and dose event recording (Claim 12).
- Licensing can be partial depending on which feature clusters your target product uses.
Key Takeaways
- US 11,344,685 is anchored on a cover-first-use power-state machine: Off before first opening, Active on first opening, then Sleep after closing, and critically no return to Off after the first time for the rest of battery life.
- Claim 1 (and method Claim 13) is broad on the architecture and state transitions, while dependent claims narrow to internal-counter timestamping, pressure sensor range/time gating, defined inhalation parameters, wireless transmission, and dose-counter/event logging.
- The most actionable design/avoidance lever is whether electronics can truly return to Off after first use and whether the wake event is implemented through the slider-to-switch mechanism tied to cover movement.
- For competitive assessment, treat this patent as a power-management + sensing telemetry bundle where wireless and inhalation metric features add additional claim “hooks.”
FAQs
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Which claim is most important for enforcement risk?
Claim 1 is the anchor system claim; Claims 13 and 22 are the primary method/system counterparts.
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What is the single biggest differentiator in the claim set?
The electronics module does not return to the Off state after the mouthpiece cover is opened for the first time throughout battery life.
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Do all claims require wireless telemetry?
No. Wireless appears in dependent claims (e.g., Claims 9, 11, 20, 21, 23).
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What sensor type is required across the broadest claim?
Claim 1 only requires a sensor. Pressure-sensor specifics appear in dependent claims (e.g., Claims 3, 6, 24).
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Does the patent require a specific list of medications?
Only Claim 5 recites example medications (salbutamol sulfate, fluticasone propionate, fluticasone propionate plus salmeterol, and beclomethasone).
References
[1] The user-provided text of claims for US Drug Patent 11,344,685 (Claims 1-25).
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