Aerosol Generation Device, And Method And Program For Operating Same

Patent No. EP4118988 (titled "Aerosol Generation Device, And Method And Program For Operating Same") was filed by Japan Tobacco, Inc. on Jun 22, 2018. The application was issued on Oct 1, 2025.

Patent Summary

An aerosol generation device comprises a storage unit for an aerosol source or base material, a load that generates heat to atomize the source, a sensor, and a control unit. The load is characterized by physical properties that change when heated to a temperature achievable only upon depletion of the aerosol source or base material. Specifically, the load's steady-state physical property value after cooling from this depletion-induced temperature differs from its initial steady-state value. The sensor outputs a value related to these physical properties. The control unit determines if depletion has occurred by analyzing the sensor's output value in a steady state after the load has reached or exceeded the atomization temperature.

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Patent Oppositions (2)

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentative
PHILIP MORRISJul 1, 2026HARRISON GODDARD FOOTE
NICOVENTURES TRADING LIMITEDJun 30, 2026D YOUNG

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

  • Date

    Description

EP4118988

JAPAN TOBACCO, INC.
Application Number
EP22193134A
Filing Date
Jun 22, 2018
Status
Granted And Under Opposition
Aug 29, 2025
Publication Date
Oct 1, 2025