According to the Kelda announcement, Hangzhou Kaiweili Sensor Technology Co., Ltd., a holding subsidiary of the company, recently received an invention patent certificate issued by the State Intellectual Property Office. The patent name is a semi-flexible sealed composite beam membrane island structure micro-nano device and its processing method, patent number ZL202610695414.3. The patent application date is May 20, 2026, July 24, 2026, and the patent period is 20 years. The patent is a reflection and extension of the company's sensor technology. It will not have a significant impact on the company's recent operations. It is conducive to improving the intellectual property protection system and enhancing core competitiveness.

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