Key Points
- Hunan China Tobacco Industry Co., Ltd. and Shenzhen Baasha Technology Co., Ltd. filed a patent application related to adult-user identification for heated tobacco devices.
- The technology uses flexible pressure sensors embedded in the device grip area to collect pressure distribution data.
- The system evaluates grip-related features including contact area, shape and duration to determine whether preset adult-use conditions are met.
- The patent combines pressure sensing with roller movement detection as a dual unlocking mechanism.
- The filing highlights ongoing exploration of smarter user recognition technologies in heated tobacco devices.
2Firsts
August 5, 2026
According to public records from China’s National Intellectual Property Administration (CNIPA), Hunan China Tobacco Industry Co., Ltd. and Shenzhen Baisha Technology Co., Ltd. have filed a patent application covering an adult-user identification mechanism for heated tobacco devices.
The patent proposes using flexible pressure sensors installed in the device grip area to collect pressure distribution patterns generated when users hold the device, combined with roller movement detection to determine whether unlocking conditions are satisfied.
The application, titled “A Unlocking Method, System, Heated Tobacco Device and Medium,” was filed on May 26, 2026, and published as CN122375812A on July 14, 2026.
Hunan China Tobacco Industry files patent for adult-user identification in heated tobacco devices
The patent application lists Hunan China Tobacco Industry Co., Ltd. and Shenzhen Baisha Technology Co., Ltd. as applicants. It covers an unlocking method, system and related hardware structures for heated tobacco devices.
Patent information:
Item | Details |
Applicants | Hunan China Tobacco Industry Co., Ltd.; Shenzhen Baisha Technology Co., Ltd. |
Patent title | A Unlocking Method, System, Heated Tobacco Device and Medium |
Application No. | CN202610737197.X |
Publication No. | CN122375812A |
Filing date | May 26, 2026 |
Publication date | July 14, 2026 |
Technology area | Heated tobacco device control, user recognition and security unlocking |
The application focuses on an alternative unlocking approach based on user grip characteristics.
Pressure sensing enables device-level adult-user recognition
The core technology proposed in the filing is a flexible pressure sensing system installed in the grip area of a heated tobacco device.
According to the patent, the system includes multiple capacitive pressure sensors that detect pressure signals generated when users’ hands contact the device. A control unit processes the collected data into pressure distribution patterns and determines whether predefined conditions are satisfied.
The pressure distribution data may include:
- Effective contact area;
- Grip shape;
- Contact duration;
- Statistical pressure features such as average pressure and peak pressure.
The patent states that differences in hand size, finger length and grip patterns between adults and children may create different pressure distribution characteristics, allowing the system to determine whether a grip condition meets preset adult-use criteria.
The approach focuses on device-level adult-user recognition rather than identity-based age verification.
Moving beyond traditional child locks toward smart user recognition
The patent notes that some heated tobacco devices use repeated button presses as a child-lock unlocking method.
The filing states that such methods may require users to remember specific operating procedures and may create risks of unintended unlocking through accidental operation.
The proposed solution uses natural grip behavior as an additional recognition factor.
Compared with conventional button-based unlocking, the technology aims to reduce reliance on complex user operations while improving device recognition capabilities through sensor-based interaction.
As the global nicotine and tobacco industry continues to focus on youth access prevention and device-level user management, sensor-based recognition technologies have become one area of exploration for heated tobacco products.
Combining pressure detection with roller-based control
Beyond pressure recognition, the patent introduces a roller-based verification mechanism to further confirm user intent.
According to the filing, a roller detection module equipped with an optical encoder can detect:
- Rotation speed;
- Rotation direction;
- Rotation travel distance.
The device performs unlocking only when both pressure distribution conditions and roller movement requirements are satisfied.
The patent also proposes using the roller component to determine whether conditions for activating the heating component are met after unlocking.
The filing reflects ongoing exploration of user recognition, safety control and human-device interaction technologies in heated tobacco devices. However, the patent application represents a technical proposal and does not indicate that the technology has already been commercialized.
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