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The patent EP3869982 was granted to KT & G on Feb 19, 2025. The application was filed on Dec 10, 2020 under application number EP20855816A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
Aerosol-generating device that automatically prevents excessive heating of the device when a cigarette is inserted, while maintaining continuous heating when the device is in a normal operating state. The device detects temperature changes in multiple sensors positioned around the device, including a thermistor adjacent to the battery and a temperature/humidity sensor at the battery's lower surface. When a cigarette is inserted, the device monitors temperature changes in these sensors to determine if the device is overheated. If it detects overheating, the device suspends the heating operation. When the device is in a normal operating state, it continuously heats the inserted cigarette. This approach eliminates the need for manual intervention to prevent overheating, while maintaining continuous heating when the device is operating normally.

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